diff --git a/src/main/java/plugins/adufour/blocks/tools/io/FileToWorkbook.java b/src/main/java/plugins/adufour/blocks/tools/io/FileToWorkbook.java
index 1b33c52d7b5aa08a529ae883453ac332a636cce8..de15784f17d15320bd89c81270fa9db35ab5729b 100644
--- a/src/main/java/plugins/adufour/blocks/tools/io/FileToWorkbook.java
+++ b/src/main/java/plugins/adufour/blocks/tools/io/FileToWorkbook.java
@@ -25,46 +25,48 @@ import plugins.adufour.workbooks.Workbooks;
  */
 public class FileToWorkbook extends Plugin implements IOBlock
 {
-    VarFile     inputFile = new VarFile("input file", null);
-    VarWorkbook workbook  = new VarWorkbook("workbook", (Workbook) null);
-    
+    VarFile inputFile = new VarFile("input file", null);
+    VarWorkbook workbook = new VarWorkbook("workbook", (Workbook) null);
+
     @Override
     public void run()
     {
         workbook.setValue(readWorkbook(inputFile.getValue(true)));
     }
-    
+
     @Override
     public void declareInput(VarList inputMap)
     {
         inputMap.add("input file", inputFile);
     }
-    
+
     @Override
     public void declareOutput(VarList outputMap)
     {
         outputMap.add("workbook", workbook);
     }
-    
+
     /**
      * Reads the specified file into a workbook. This method will read Excel-compatible (.xls)
-     * files, but will also read tab-delimited text files. <br/>
+     * files, but will also read tab-delimited text files. <br>
      * Note: tab-delimited text files may contain multiple sheets, if specified as in the following
-     * example:<br/>
-     * <code>== sheet 1 ==<br/>
-     * item1 (tab) item2<br/>
-     * == sheet 2 ==<br/>
-     * item3 (tab) item4</code><br/>
+     * example:<br>
+     * <code>== sheet 1 ==<br>
+     * item1 (tab) item2<br>
+     * == sheet 2 ==<br>
+     * item3 (tab) item4</code><br>
      * (the same convention is followed by
      * {@link WorkbookToFile#saveAsText(Workbook, String, MergePolicy)}
      * 
      * @param file
-     * @return
+     *        input file
+     * @return the workbook read from input file
      */
     public static Workbook readWorkbook(File file)
     {
-        if (!file.exists() || file.isDirectory()) throw new IllegalArgumentException("Cannot read a workbook from " + file.getPath());
-        
+        if (!file.exists() || file.isDirectory())
+            throw new IllegalArgumentException("Cannot read a workbook from " + file.getPath());
+
         try
         {
             FileInputStream fis = new FileInputStream(file);
@@ -77,26 +79,26 @@ public class FileToWorkbook extends Plugin implements IOBlock
             // try text
             Workbook wb = Workbooks.createEmptyWorkbook();
             Sheet sheet = null;
-            
+
             try
             {
                 BufferedReader reader = new BufferedReader(new FileReader(file));
                 int rowID = 0;
                 boolean newLine = false;
-                
+
                 while (reader.ready())
                 {
                     String line = reader.readLine();
-                    
+
                     if (line.isEmpty())
                     {
                         // remember there is a new line, deal with it later
                         newLine = true;
                         continue;
                     }
-                    
+
                     // 1) fetch (or create) the sheet
-                    
+
                     // special case: sheet name saved using FileToWorkbook
                     if (line.startsWith("== "))
                     {
@@ -104,14 +106,14 @@ public class FileToWorkbook extends Plugin implements IOBlock
                         newLine = false;
                         String sheetName = line.substring(3, line.indexOf(" =="));
                         sheet = wb.createSheet(sheetName);
-                        
+
                         // reset the row
                         rowID = 0;
-                        
+
                         // nothing else interesting in this line...
                         continue;
                     }
-                    
+
                     // otherwise, create a (default) empty sheet
                     if (sheet == null)
                     {
@@ -119,18 +121,20 @@ public class FileToWorkbook extends Plugin implements IOBlock
                         // reset the row
                         rowID = 0;
                     }
-                    
+
                     // 2) add the new line (if any)
-                    if (newLine) sheet.createRow(rowID++);
-                    
+                    if (newLine)
+                        sheet.createRow(rowID++);
+
                     // 3) Create a new row for the current input
                     Row row = sheet.createRow(rowID++);
-                    
+
                     // skip empty lines
-                    if (line.isEmpty()) continue;
-                    
+                    if (line.isEmpty())
+                        continue;
+
                     int colID = 0;
-                    
+
                     String[] words = line.split("\t");
                     for (String word : words)
                     {
@@ -149,9 +153,9 @@ public class FileToWorkbook extends Plugin implements IOBlock
                         colID++;
                     }
                 }
-                
+
                 reader.close();
-                
+
                 return wb;
             }
             catch (Exception e2)
diff --git a/src/main/java/plugins/adufour/blocks/tools/io/WorkbookToFile.java b/src/main/java/plugins/adufour/blocks/tools/io/WorkbookToFile.java
index d16c894fed106baa6bf159e3021030e51fdb18d8..34aae3efbf8e4da7092341c1b49b0a9c83c0c78c 100644
--- a/src/main/java/plugins/adufour/blocks/tools/io/WorkbookToFile.java
+++ b/src/main/java/plugins/adufour/blocks/tools/io/WorkbookToFile.java
@@ -99,7 +99,9 @@ public class WorkbookToFile extends Plugin implements IOBlock
      * added to the file name if it is not present
      * 
      * @param workbook
+     *        workbook to save
      * @param fileName
+     *        file name where to save workbook
      * @deprecated Use {@link #saveAsSpreadSheet(Workbook, String, MergePolicy)} instead.
      */
     @Deprecated
@@ -113,7 +115,11 @@ public class WorkbookToFile extends Plugin implements IOBlock
      * added to the file name if it is not present
      * 
      * @param workbook
+     *        workbook to save
      * @param fileName
+     *        file name where to save workbook
+     * @param mergePolicy
+     *        indicates if and how the file should be appended
      */
     public static void saveAsSpreadSheet(Workbook workbook, String fileName, MergePolicy mergePolicy)
     {
@@ -180,7 +186,9 @@ public class WorkbookToFile extends Plugin implements IOBlock
      * added to the file name if it is not present
      * 
      * @param workbook
+     *        workbook to save
      * @param fileName
+     *        file name where to save workbook
      * @deprecated Use {@link #saveAsText(Workbook, String, MergePolicy)} instead.
      */
     @Deprecated
@@ -192,12 +200,12 @@ public class WorkbookToFile extends Plugin implements IOBlock
     /**
      * Saves the specified workbook to a spreadsheet file. By default, the ".txt" extension will be
      * added to the file name if it is not present. If the workbook contains multiple sheets, they
-     * will be stored in the text file as in the following example:<br/>
-     * <code>== sheet 1 ==<br/>
-     * item1 (tab) item2<br/>
-     * <br/>
-     * == sheet 2 ==<br/>
-     * item3 (tab) item4</code><br/>
+     * will be stored in the text file as in the following example:<br>
+     * <code>== sheet 1 ==<br>
+     * item1 (tab) item2<br>
+     * <br>
+     * == sheet 2 ==<br>
+     * item3 (tab) item4</code><br>
      * 
      * @param workbook
      *        the workbook to save
diff --git a/src/main/java/plugins/adufour/vars/gui/swing/PersistentColumnControlButton.java b/src/main/java/plugins/adufour/vars/gui/swing/PersistentColumnControlButton.java
index 653582e158a7db064a0961088c9449eed3278d00..5a3cadad6faabdd068d1803c83ec7d30f1f93c17 100644
--- a/src/main/java/plugins/adufour/vars/gui/swing/PersistentColumnControlButton.java
+++ b/src/main/java/plugins/adufour/vars/gui/swing/PersistentColumnControlButton.java
@@ -17,8 +17,8 @@ import org.pushingpixels.substance.internal.ui.SubstanceCheckBoxMenuItemUI;
 /**
  * Persistent version of JXTable's column control button that keeps the pop-up open even after a
  * column is clicked (allowing multiple clicks at once). The pop-up will close if the
- * ColumnControlButton is pressed again. <br/>
- * <br/>
+ * ColumnControlButton is pressed again. <br>
+ * <br>
  * This code was adapted from the <a
  * href="http://www.coding-dude.com/wp/java/custom-columncontrolbutton-java-swing-jxtable/">
  * following page</a>.
diff --git a/src/main/java/plugins/adufour/vars/gui/swing/WorkbookEditor.java b/src/main/java/plugins/adufour/vars/gui/swing/WorkbookEditor.java
index 85d0e037fba81777ea32151a4d2b790f3610b449..8b09ebda66305503b6e1dc1bac2bf9c39b097ee2 100644
--- a/src/main/java/plugins/adufour/vars/gui/swing/WorkbookEditor.java
+++ b/src/main/java/plugins/adufour/vars/gui/swing/WorkbookEditor.java
@@ -231,7 +231,7 @@ public class WorkbookEditor extends SwingVarEditor<Workbook>
     /**
      * Sets whether the open button should be visible
      * 
-     * @param visible
+     * @param visible visible state
      */
     public void setOpenButtonVisible(boolean visible)
     {
@@ -240,6 +240,8 @@ public class WorkbookEditor extends SwingVarEditor<Workbook>
 
     /**
      * Sets whether the table editor is read-only, and therefore rejects user input
+     * 
+     * @param readOnly read only state
      */
     public void setReadOnly(boolean readOnly)
     {
diff --git a/src/main/java/plugins/adufour/vars/lang/VarWorkbook.java b/src/main/java/plugins/adufour/vars/lang/VarWorkbook.java
index 7706b091fdb8113e58ae7386623f26c58bdc476f..bf91aed71797be50853bb9eba51f272e3f9a31f8 100644
--- a/src/main/java/plugins/adufour/vars/lang/VarWorkbook.java
+++ b/src/main/java/plugins/adufour/vars/lang/VarWorkbook.java
@@ -15,7 +15,6 @@ import plugins.adufour.vars.gui.VarEditor;
 import plugins.adufour.vars.gui.swing.WorkbookEditor;
 import plugins.adufour.vars.util.VarException;
 import plugins.adufour.workbooks.Workbooks;
-import plugins.adufour.workbooks.Workbooks.WorkbookFormat;
 
 public class VarWorkbook extends Var<Workbook>
 {
@@ -23,50 +22,54 @@ public class VarWorkbook extends Var<Workbook>
      * Creates a new variable with the workbook read from the specified file
      * 
      * @param name
-     *            the name of the workbook
+     *        the name of the workbook
      * @param workbook
-     *            the workbook to work with
+     *        the workbook to work with
      */
     public VarWorkbook(String name, Workbook workbook)
     {
         super(name, Workbook.class, workbook, null);
     }
-    
+
     /**
      * Creates a new variable with the workbook read from the specified file
      * 
      * @param name
-     *            the name of the workbook
+     *        the name of the workbook
      * @param file
-     *            the file to read the workbook from
+     *        the file to read the workbook from
+     * @throws InvalidFormatException
+     *         if input file format is incorrect
+     * @throws IOException
+     *         if input file is not found
      */
     public VarWorkbook(String name, File file) throws InvalidFormatException, IOException
     {
         this(name, WorkbookFactory.create(file));
     }
-    
+
     /**
      * Creates a new variable with a new empty workbook
      * 
      * @param name
-     *            the name of the workbook
+     *        the name of the workbook
      * @param firstSheetName
-     *            the name of the first sheet
+     *        the name of the first sheet
      */
     public VarWorkbook(String name, String firstSheetName)
     {
         this(name, Workbooks.createEmptyWorkbook());
-        
+
         getValue().createSheet(firstSheetName);
     }
-    
+
     @Override
     public VarEditor<Workbook> createVarEditor()
     {
         WorkbookEditor editor = new WorkbookEditor(this);
         return editor;
     }
-    
+
     @Override
     public VarEditor<Workbook> createVarViewer()
     {
@@ -75,29 +78,31 @@ public class VarWorkbook extends Var<Workbook>
         editor.setOpenButtonVisible(false);
         return editor;
     }
-    
+
     /**
      * Save the workbook to disk
      * 
      * @param folder
-     *            the folder on disk where the workbook should be saved (must exist)
+     *        the folder on disk where the workbook should be saved (must exist)
      * @param workbookName
-     *            the name of the workbook (without extension)
+     *        the name of the workbook (without extension)
      * @throws VarException
-     *             if the workbook is <code>null</code>
+     *         if the workbook is <code>null</code>
      * @throws IOException
-     *             if the file cannot be accessed
+     *         if the file cannot be accessed
      */
     public void saveToDisk(File folder, String workbookName) throws VarException, IOException
     {
-        if (!folder.isDirectory()) throw new FilerException(folder + "is not a valid folder");
-        
+        if (!folder.isDirectory())
+            throw new FilerException(folder + "is not a valid folder");
+
         Workbook wb = getValue(true);
-        
+
         String filename = folder.getPath() + File.separator + workbookName + ".xls";
-        
-        if (wb instanceof XSSFWorkbook) filename = filename + "x";
-        
+
+        if (wb instanceof XSSFWorkbook)
+            filename = filename + "x";
+
         FileOutputStream out = new FileOutputStream(filename);
         wb.write(out);
         out.close();
diff --git a/src/main/java/plugins/adufour/workbooks/IcySpreadSheet.java b/src/main/java/plugins/adufour/workbooks/IcySpreadSheet.java
index 1f38006b582c2115f11b51624367a09d4e35f7cf..1be355f600ad07c248425dd9b7ff5bd243ba179b 100644
--- a/src/main/java/plugins/adufour/workbooks/IcySpreadSheet.java
+++ b/src/main/java/plugins/adufour/workbooks/IcySpreadSheet.java
@@ -45,9 +45,9 @@ public class IcySpreadSheet
     }
 
     /**
-     * @param source
+     * @param sourceColumn
      *        the index of the row to copy (NB: the first row is at index 0)
-     * @param target
+     * @param targetColumn
      *        the index of the row where the source row will be pasted (NB: the first row is at
      *        index 0)
      */
@@ -81,9 +81,9 @@ public class IcySpreadSheet
     }
 
     /**
-     * @param source
+     * @param sourceRow
      *        the index of the row to copy (NB: the first row is at index 0)
-     * @param target
+     * @param targetRow
      *        the index of the row where the source row will be pasted (NB: the first row is at
      *        index 0)
      */
@@ -209,7 +209,9 @@ public class IcySpreadSheet
 
     /**
      * @param row
+     *        row index
      * @param column
+     *        column index
      * @return the background color of the specified cell
      */
     public Color getFillColor(int row, int column)
@@ -350,7 +352,9 @@ public class IcySpreadSheet
      * Sets the fill color of the specified cell
      * 
      * @param row
+     *        row index
      * @param column
+     *        column index
      * @param color
      *        the color to assign
      */
@@ -401,11 +405,13 @@ public class IcySpreadSheet
 
     /**
      * Sets the formula for the specified cell. The formula follows the standard Excel-compatible
-     * syntax with alphanumeric references to other cells (e.g. "=A1*A2"). <br/>
+     * syntax with alphanumeric references to other cells (e.g. "=A1*A2"). <br>
      * NOTE: this method is not responsible for checking the formula for potential syntax errors.
      * 
      * @param row
+     *        row index
      * @param column
+     *        column index
      * @param formula
      *        the formula
      * @throws FormulaParseException
@@ -431,7 +437,7 @@ public class IcySpreadSheet
      * <li>Any compatible {@link Number} (will be converted to double precision)</li>
      * </ul>
      * Other unsupported objects will be replaced by their String representation (via
-     * {@link Object#toString()})<br/>
+     * {@link Object#toString()})<br>
      * NOTE: to assign a formula to this cell, use {@link #setFormula(int, int, String)}.
      * 
      * @param row
@@ -582,7 +588,7 @@ public class IcySpreadSheet
      *        the index of the row to fill (Note: the first column is at index 0)
      * @param values
      *        the values to add, separated by commas, or a single array containing the values to
-     *        add.<br/>
+     *        add.<br>
      *        NB: numbers and string will be recognized as such, any other item will be
      *        converted to string using {@link Object#toString()}, while <code>null</code>
      *        values will result in an empty cell
diff --git a/src/main/java/plugins/adufour/workbooks/Workbooks.java b/src/main/java/plugins/adufour/workbooks/Workbooks.java
index e8285facfed1e77df0d964df6004cffe3b5ddd5a..22f868c563ed3beabf9f350e525d291c7a199181 100644
--- a/src/main/java/plugins/adufour/workbooks/Workbooks.java
+++ b/src/main/java/plugins/adufour/workbooks/Workbooks.java
@@ -40,12 +40,12 @@ public class Workbooks extends PluginActionable implements PluginThreaded
      */
     public enum WorkbookFormat
     {
-        /** Legacy format (compatible with Excel <= 2004). Limited to 256 columns and 65536 rows */
+        /** Legacy format (compatible with Excel &lt;= 2004). Limited to 256 columns and 65536 rows */
         XLS,
-        
-        /** Recommended format (compatible with Excel >= 2007) */
+
+        /** Recommended format (compatible with Excel &gt;= 2007) */
         XLSX;
-        
+
         Workbook createEmptyWorkbook()
         {
             switch (this)
@@ -58,29 +58,32 @@ public class Workbooks extends PluginActionable implements PluginThreaded
                     throw new UnsupportedOperationException("Unknown format: " + toString());
             }
         }
-        
+
         public String getExtension()
         {
             return '.' + name().toLowerCase();
         }
-        
+
         public static WorkbookFormat getFormat(Workbook workbook)
         {
-            if (workbook instanceof HSSFWorkbook) return XLS;
-            if (workbook instanceof XSSFWorkbook) return XLSX;
-            
+            if (workbook instanceof HSSFWorkbook)
+                return XLS;
+            if (workbook instanceof XSSFWorkbook)
+                return XLSX;
+
             throw new IllegalArgumentException("Unknown format for workbook " + workbook);
         }
     }
-    
-    private final String defaultTitle = "Icy Workbooks v." + getDescriptor().getVersion().getMajor() + "." + getDescriptor().getVersion().getMinor();
-    
+
+    private final String defaultTitle = "Icy Workbooks v." + getDescriptor().getVersion().getMajor() + "."
+            + getDescriptor().getVersion().getMinor();
+
     @Override
     public void run()
     {
         show(createEmptyWorkbook(), defaultTitle, true);
     }
-    
+
     /**
      * @return A new empty workbook using the old compatibility format (XLS).
      */
@@ -88,12 +91,12 @@ public class Workbooks extends PluginActionable implements PluginThreaded
     {
         return createEmptyWorkbook(WorkbookFormat.XLSX);
     }
-    
+
     /**
      * Creates a new (empty) workbook with the specified format
      * 
      * @param format
-     *            the format of the workbook to create (see {@link WorkbookFormat})
+     *        the format of the workbook to create (see {@link WorkbookFormat})
      * @return a new (empty) workbook
      * @see WorkbookFormat
      * @see WorkbookFormat#XLS
@@ -104,87 +107,90 @@ public class Workbooks extends PluginActionable implements PluginThreaded
         workbook.setMissingCellPolicy(Row.MissingCellPolicy.CREATE_NULL_AS_BLANK);
         return workbook;
     }
-    
+
     /**
      * Reads the specified file into a workbook. This method will read Excel-compatible (.xls)
-     * files, but will also read tab-delimited text files. <br/>
+     * files, but will also read tab-delimited text files. <br>
      * Note: tab-delimited text files may contain multiple sheets, if specified as in the following
-     * example:<br/>
-     * <code>== sheet 1 ==<br/>
-     * item1 (tab) item2<br/>
-     * == sheet 2 ==<br/>
-     * item3 (tab) item4</code><br/>
+     * example:<br>
+     * <code>== sheet 1 ==<br>
+     * item1 (tab) item2<br>
+     * == sheet 2 ==<br>
+     * item3 (tab) item4</code><br>
      * (the same convention is followed by
      * {@link WorkbookToFile#saveAsText(Workbook, String, MergePolicy)}
      * 
      * @param filePath
-     *            the path of the file to open
-     * @return
+     *        the path of the file to open
+     * @return the workbook read from input file
      */
     public static Workbook openWorkbook(String filePath)
     {
         return openWorkbook(new File(filePath));
     }
-    
+
     /**
      * Reads the specified file into a workbook. This method will read Excel-compatible (.xls)
-     * files, but will also read tab-delimited text files. <br/>
+     * files, but will also read tab-delimited text files. <br>
      * Note: tab-delimited text files may contain multiple sheets, if specified as in the following
-     * example:<br/>
-     * <code>== sheet 1 ==<br/>
-     * item1 (tab) item2<br/>
-     * == sheet 2 ==<br/>
-     * item3 (tab) item4</code><br/>
+     * example:<br>
+     * <code>== sheet 1 ==<br>
+     * item1 (tab) item2<br>
+     * == sheet 2 ==<br>
+     * item3 (tab) item4</code><br>
      * (the same convention is followed by
      * {@link WorkbookToFile#saveAsText(Workbook, String, MergePolicy)}
      * 
      * @param file
-     *            the file to open
-     * @return
+     *        the file to open
+     * @return the workbook read from input file
      */
     public static Workbook openWorkbook(File file)
     {
         return FileToWorkbook.readWorkbook(file);
     }
-    
+
     /**
      * @param wb
+     *        input {@link Workbook}
      * @return The format of this workbook (see the {@link WorkbookFormat} enumeration)
      */
     public static WorkbookFormat getFormat(Workbook wb)
     {
         return WorkbookFormat.getFormat(wb);
     }
-    
+
     /**
      * Fetches the specified sheet from the specified workbook. The sheet is created if necessary.
-     * <br/>
+     * <br>
      * NB: If the provided sheet name contains invalid characters, they are automatically replaced
      * in order to comply with the workbook format (similarly to the
      * {@link #containsSheet(Workbook, String)} method)
      * 
      * @param workbook
-     *            the workbook where the sheet should be fetched (or created)
+     *        the workbook where the sheet should be fetched (or created)
      * @param sheetName
-     *            the name of the sheet to fetch or create. Note that the final sheet name may be
-     *            different from the provided name, for instance if the name contains special
-     *            characters
+     *        the name of the sheet to fetch or create. Note that the final sheet name may be
+     *        different from the provided name, for instance if the name contains special
+     *        characters
      * @return the sheet with the specified name, wrapped into a {@link IcySpreadSheet} object for
      *         simplified manipulation
      */
     public static IcySpreadSheet getSheet(Workbook workbook, String sheetName)
     {
         Sheet sheet = workbook.getSheet(sheetName);
-        if (sheet != null) return new IcySpreadSheet(sheet);
-        
+        if (sheet != null)
+            return new IcySpreadSheet(sheet);
+
         sheetName = WorkbookUtil.createSafeSheetName(sheetName);
         sheet = workbook.getSheet(sheetName);
-        
+
         return new IcySpreadSheet(sheet != null ? sheet : workbook.createSheet(sheetName));
     }
-    
+
     /**
      * @param workbook
+     *        input {@link Workbook}
      * @return a collection of sheets contained in this workbook
      */
     public static Collection<IcySpreadSheet> getSheets(Workbook workbook)
@@ -195,13 +201,15 @@ public class Workbooks extends PluginActionable implements PluginThreaded
             sheets.add(new IcySpreadSheet(workbook.getSheetAt(i)));
         return sheets;
     }
-    
+
     /**
      * Copies the type, value and comment of <code>srcCell</code> into <code>dstCell</code>. Note
      * that this is not a perfect clone, as the cell style is not copied
      * 
      * @param srcCell
+     *        source cell
      * @param dstCell
+     *        destination cell
      */
     public static void copyCell(Cell srcCell, Cell dstCell)
     {
@@ -211,33 +219,33 @@ public class Workbooks extends PluginActionable implements PluginThreaded
         {
             case Cell.CELL_TYPE_STRING:
                 dstCell.setCellValue(srcCell.getStringCellValue());
-            break;
+                break;
             case Cell.CELL_TYPE_NUMERIC:
                 dstCell.setCellValue(srcCell.getNumericCellValue());
-            break;
+                break;
             case Cell.CELL_TYPE_BOOLEAN:
                 dstCell.setCellValue(srcCell.getBooleanCellValue());
-            break;
+                break;
             case Cell.CELL_TYPE_FORMULA:
                 dstCell.setCellFormula(srcCell.getCellFormula());
-            break;
+                break;
             case Cell.CELL_TYPE_ERROR:
                 dstCell.setCellErrorValue(srcCell.getErrorCellValue());
-            break;
+                break;
             default:
         }
     }
-    
+
     /**
-     * Checks whether the specified workbook contains a sheet with the specified name.<br/>
+     * Checks whether the specified workbook contains a sheet with the specified name.<br>
      * NB: If the provided sheet name contains invalid characters, they are automatically replaced
      * in order to comply with the workbook format (similarly to the
      * {@link #getSheet(Workbook, String)} method)
      * 
      * @param workbook
-     *            the workbook where the sheet should be searched for
+     *        the workbook where the sheet should be searched for
      * @param sheetName
-     *            the name of the sheet to search for
+     *        the name of the sheet to search for
      * @return <code>true</code> if the sheet exists, <code>false</code> otherwise
      */
     public static boolean containsSheet(Workbook workbook, String sheetName)
@@ -245,52 +253,54 @@ public class Workbooks extends PluginActionable implements PluginThreaded
         sheetName = WorkbookUtil.createSafeSheetName(sheetName);
         return workbook.getSheet(sheetName) != null;
     }
-    
+
     /**
      * Shows the specified workbook on screen in an editor window
      * 
      * @param workbook
-     *            the workbook to show
-     * @param editable
-     *            <code>true</code> if the user can edit the workbook, <code>false</code> otherwise
+     *        the workbook to show
+     * @param windowTitle
+     *        window title
      */
     public static void show(Workbook workbook, String windowTitle)
     {
         show(workbook, windowTitle, false);
     }
-    
+
     /**
      * Shows the specified workbook on screen in an editor window
      * 
      * @param workbook
-     *            the workbook to show
+     *        the workbook to show
+     * @param windowTitle
+     *        window title
      * @param editable
-     *            <code>true</code> if the user can edit the workbook, <code>false</code> otherwise
+     *        <code>true</code> if the user can edit the workbook, <code>false</code> otherwise
      */
     public static void show(final Workbook workbook, final String windowTitle, final boolean editable)
     {
         final VarWorkbook wb = new VarWorkbook(windowTitle, workbook);
-        
+
         ThreadUtil.invokeLater(new Runnable()
         {
             @Override
             public void run()
             {
                 final EzDialog dialog = new EzDialog(windowTitle);
-                
+
                 dialog.setLayout(new BoxLayout(dialog.getContentPane(), BoxLayout.Y_AXIS));
-                
+
                 WorkbookEditor editor = new WorkbookEditor(wb);
                 editor.setReadOnly(!editable);
                 editor.setEnabled(true);
                 dialog.add(editor.getEditorComponent());
-                
+
                 dialog.addToDesktopPane();
                 dialog.setVisible(true);
             }
         });
     }
-    
+
     /**
      * A test to make sure the plug-in works as intended. Also useful as a sample code
      */
@@ -298,25 +308,25 @@ public class Workbooks extends PluginActionable implements PluginThreaded
     {
         // Create an empty workbook
         Workbook wb = Workbooks.createEmptyWorkbook();
-        
+
         // Get a (possibly new) sheet
         IcySpreadSheet sheet = Workbooks.getSheet(wb, "Test");
-        
+
         // Set the header row (all at once, easier to write!)
         sheet.setRow(0, "Col 0", "Col 1", "Some other column"); // etc.
-        
+
         // Assign a few cell values
         // NB: give any object (unknown types are converted to text)
         sheet.setValue(0, 0, "Name");
         sheet.setValue(1, 0, 3);
-        
+
         // Need to insert a formula?
         // NB: this is the standard formula syntax. The first (corner) cell is called "A1"
         sheet.setFormula(1, 1, "A2 * A2");
-        
+
         // How about changing the background color?
         sheet.setFillColor(1, 0, Color.cyan);
-        
+
         // Finally, show the workbook on screen
         // with a nice window title and whether the table should be editable
         Workbooks.show(wb, "Workbook test", false);