All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable, java.lang.Iterable<Sheet>

All Known Implementing Classes:

HSSFWorkbook, SXSSFWorkbook, SXSSFWorkbookWithCustomZipEntrySource, XSSFWorkbook
```
public interface Workbook
extends java.io.Closeable, java.lang.Iterable<Sheet>
```
High level representation of a Excel workbook. This is the first object most users will construct whether they are reading or writing a workbook. It is also the top level object for creating new sheets/etc.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`PICTURE_TYPE_DIB`	Device independent bitmap
`static int`	`PICTURE_TYPE_EMF`	Extended windows meta file
`static int`	`PICTURE_TYPE_JPEG`	JPEG format
`static int`	`PICTURE_TYPE_PICT`	Mac PICT format
`static int`	`PICTURE_TYPE_PNG`	PNG format
`static int`	`PICTURE_TYPE_WMF`	Windows Meta File

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`int`	`addOlePackage(byte[] oleData, java.lang.String label, java.lang.String fileName, java.lang.String command)`	Adds an OLE package manager object with the given content to the sheet
`int`	`addPicture(byte[] pictureData, int format)`	Adds a picture to the workbook.
`void`	`addToolPack(UDFFinder toopack)`	Register a new toolpack in this workbook.
`Sheet`	`cloneSheet(int sheetNum)`	Create an Sheet from an existing sheet in the Workbook.
`void`	`close()`	Close the underlying input resource (File or Stream), from which the Workbook was read.
`CellStyle`	`createCellStyle()`	Create a new Cell style and add it to the workbook's style table
`DataFormat`	`createDataFormat()`	Returns the instance of DataFormat for this workbook.
`Font`	`createFont()`	Create a new Font and add it to the workbook's font table
`Name`	`createName()`	Creates a new (uninitialised) defined name in this workbook
`Sheet`	`createSheet()`	Create a Sheet for this Workbook, adds it to the sheets and returns the high level representation.
`Sheet`	`createSheet(java.lang.String sheetname)`	Create a new sheet for this Workbook and return the high level representation.
`Font`	`findFont(boolean bold, short color, short fontHeight, java.lang.String name, boolean italic, boolean strikeout, short typeOffset, byte underline)`	Finds a font that matches the one with the supplied attributes
`int`	`getActiveSheetIndex()`	Convenience method to get the active sheet.
`java.util.List<? extends Name>`	`getAllNames()`	Returns all defined names.
`java.util.List<? extends PictureData>`	`getAllPictures()`	Gets all pictures from the Workbook.
`CellStyle`	`getCellStyleAt(int idx)`	Get the cell style object at the given index
`CreationHelper`	`getCreationHelper()`	Returns an object that handles instantiating concrete classes of the various instances one needs for HSSF and XSSF.
`int`	`getFirstVisibleTab()`	Gets the first tab that is displayed in the list of tabs in excel.
`Font`	`getFontAt(int idx)`	Get the font at the given index number
`Font`	`getFontAt(short idx)`	Deprecated. use `getFontAt(int)`
`boolean`	`getForceFormulaRecalculation()`	Whether Excel will be asked to recalculate all formulas when the workbook is opened.
`Row.MissingCellPolicy`	`getMissingCellPolicy()`	Retrieves the current policy on what to do when getting missing or blank cells from a row.
`Name`	`getName(java.lang.String name)`
`Name`	`getNameAt(int nameIndex)`	Deprecated. 4.0.0.
`int`	`getNameIndex(java.lang.String name)`	Deprecated. 3.18.
`java.util.List<? extends Name>`	`getNames(java.lang.String name)`	Returns all defined names with the given name.
`short`	`getNumberOfFonts()`	Deprecated. use `getNumberOfFontsAsInt()` instead
`int`	`getNumberOfFontsAsInt()`	Get the number of fonts in the font table
`int`	`getNumberOfNames()`
`int`	`getNumberOfSheets()`	Get the number of spreadsheets in the workbook
`int`	`getNumCellStyles()`	Get the number of styles the workbook contains
`java.lang.String`	`getPrintArea(int sheetIndex)`	Retrieves the reference for the printarea of the specified sheet, the sheet name is appended to the reference even if it was not specified.
`Sheet`	`getSheet(java.lang.String name)`	Get sheet with the given name
`Sheet`	`getSheetAt(int index)`	Get the Sheet object at the given index.
`int`	`getSheetIndex(java.lang.String name)`	Returns the index of the sheet by his name
`int`	`getSheetIndex(Sheet sheet)`	Returns the index of the given sheet
`java.lang.String`	`getSheetName(int sheet)`	Get the sheet name
`SheetVisibility`	`getSheetVisibility(int sheetIx)`	Get the visibility (visible, hidden, very hidden) of a sheet in this workbook
`SpreadsheetVersion`	`getSpreadsheetVersion()`	Returns the spreadsheet version of this workbook
`boolean`	`isHidden()`
`boolean`	`isSheetHidden(int sheetIx)`	Check whether a sheet is hidden.
`boolean`	`isSheetVeryHidden(int sheetIx)`	Check whether a sheet is very hidden.
`int`	`linkExternalWorkbook(java.lang.String name, Workbook workbook)`	Adds the linking required to allow formulas referencing the specified external workbook to be added to this one.
`void`	`removeName(int index)`	Deprecated. 3.18.
`void`	`removeName(java.lang.String name)`	Deprecated. 3.18.
`void`	`removeName(Name name)`	Remove a defined name
`void`	`removePrintArea(int sheetIndex)`	Delete the printarea for the sheet specified
`void`	`removeSheetAt(int index)`	Removes sheet at the given index
`void`	`setActiveSheet(int sheetIndex)`	Convenience method to set the active sheet.
`void`	`setFirstVisibleTab(int sheetIndex)`	Sets the first tab that is displayed in the list of tabs in excel.
`void`	`setForceFormulaRecalculation(boolean value)`	Whether the application shall perform a full recalculation when the workbook is opened.
`void`	`setHidden(boolean hiddenFlag)`
`void`	`setMissingCellPolicy(Row.MissingCellPolicy missingCellPolicy)`	Sets the policy on what to do when getting missing or blank cells from a row.
`void`	`setPrintArea(int sheetIndex, int startColumn, int endColumn, int startRow, int endRow)`	For the Convenience of Java Programmers maintaining pointers.
`void`	`setPrintArea(int sheetIndex, java.lang.String reference)`	Sets the printarea for the sheet provided
`void`	`setSelectedTab(int index)`	Sets the tab whose data is actually seen when the sheet is opened.
`void`	`setSheetHidden(int sheetIx, boolean hidden)`	Hide or unhide a sheet.
`void`	`setSheetName(int sheet, java.lang.String name)`	Set the sheet name.
`void`	`setSheetOrder(java.lang.String sheetname, int pos)`	Sets the order of appearance for a given sheet.
`void`	`setSheetVisibility(int sheetIx, SheetVisibility visibility)`	Hide or unhide a sheet.
`java.util.Iterator<Sheet>`	`sheetIterator()`	Returns an iterator of the sheets in the workbook in sheet order.
`void`	`write(java.io.OutputStream stream)`	Write out this workbook to an Outputstream.

Methods inherited from interface java.lang.Iterable
forEach, iterator, spliterator

- Field Detail
  - PICTURE_TYPE_EMF
```
static final int PICTURE_TYPE_EMF
```
    Extended windows meta file
    
    See Also:
    
    Constant Field Values
  - PICTURE_TYPE_WMF
```
static final int PICTURE_TYPE_WMF
```
    Windows Meta File
    
    See Also:
    
    Constant Field Values
  - PICTURE_TYPE_PICT
```
static final int PICTURE_TYPE_PICT
```
    Mac PICT format
    
    See Also:
    
    Constant Field Values
  - PICTURE_TYPE_JPEG
```
static final int PICTURE_TYPE_JPEG
```
    JPEG format
    
    See Also:
    
    Constant Field Values
  - PICTURE_TYPE_PNG
```
static final int PICTURE_TYPE_PNG
```
    PNG format
    
    See Also:
    
    Constant Field Values
  - PICTURE_TYPE_DIB
```
static final int PICTURE_TYPE_DIB
```
    Device independent bitmap
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getActiveSheetIndex
```
int getActiveSheetIndex()
```
    Convenience method to get the active sheet. The active sheet is is the sheet which is currently displayed when the workbook is viewed in Excel. 'Selected' sheet(s) is a distinct concept.
    
    Returns:
    
    the index of the active sheet (0-based)
  - setActiveSheet
```
void setActiveSheet(int sheetIndex)
```
    Convenience method to set the active sheet. The active sheet is is the sheet which is currently displayed when the workbook is viewed in Excel. 'Selected' sheet(s) is a distinct concept.
    
    Parameters:
    
    sheetIndex - index of the active sheet (0-based)
  - getFirstVisibleTab
```
int getFirstVisibleTab()
```
    Gets the first tab that is displayed in the list of tabs in excel.
    
    Returns:
    
    the first tab that to display in the list of tabs (0-based).
  - setFirstVisibleTab
```
void setFirstVisibleTab(int sheetIndex)
```
    Sets the first tab that is displayed in the list of tabs in excel.
    
    Parameters:
    
    sheetIndex - the first tab that to display in the list of tabs (0-based)
  - setSheetOrder
```
void setSheetOrder(java.lang.String sheetname,
                   int pos)
```
    Sets the order of appearance for a given sheet.
    
    Parameters:
    
    sheetname - the name of the sheet to reorder
    
    pos - the position that we want to insert the sheet into (0 based)
  - setSelectedTab
```
void setSelectedTab(int index)
```
    Sets the tab whose data is actually seen when the sheet is opened. This may be different from the "selected sheet" since excel seems to allow you to show the data of one sheet when another is seen "selected" in the tabs (at the bottom).
    
    Parameters:
    
    index - the index of the sheet to select (0 based)
    
    See Also:
    
    Sheet.setSelected(boolean)
  - setSheetName
```
void setSheetName(int sheet,
                  java.lang.String name)
```
    Set the sheet name.
    See WorkbookUtil.createSafeSheetName(String nameProposal) for a safe way to create valid names
    
    Parameters:
    
    sheet - number (0 based)
    
    Throws:
    
    java.lang.IllegalArgumentException - if the name is null or invalid or workbook already contains a sheet with this name
    
    See Also:
    
    createSheet(String), WorkbookUtil.createSafeSheetName(String nameProposal)
  - getSheetName
```
java.lang.String getSheetName(int sheet)
```
    Get the sheet name
    
    Parameters:
    
    sheet - sheet number (0 based)
    
    Returns:
    
    Sheet name
  - getSheetIndex
```
int getSheetIndex(java.lang.String name)
```
    Returns the index of the sheet by his name
    
    Parameters:
    
    name - the sheet name
    
    Returns:
    
    index of the sheet (0 based)
  - getSheetIndex
```
int getSheetIndex(Sheet sheet)
```
    Returns the index of the given sheet
    
    Parameters:
    
    sheet - the sheet to look up
    
    Returns:
    
    index of the sheet (0 based)
  - createSheet
```
Sheet createSheet()
```
    Create a Sheet for this Workbook, adds it to the sheets and returns the high level representation. Use this to create new sheets.
    
    Returns:
    
    Sheet representing the new sheet.
  - createSheet
```
Sheet createSheet(java.lang.String sheetname)
```
    Create a new sheet for this Workbook and return the high level representation. Use this to create new sheets.
    Note that Excel allows sheet names up to 31 chars in length but other applications (such as OpenOffice) allow more. Some versions of Excel crash with names longer than 31 chars, others - truncate such names to 31 character.
    
    POI's SpreadsheetAPI silently truncates the input argument to 31 characters. Example:
    Sheet sheet = workbook.createSheet("My very long sheet name which is longer than 31 chars"); // will be truncated assert 31 == sheet.getSheetName().length(); assert "My very long sheet name which i" == sheet.getSheetName();
    
    Except the 31-character constraint, Excel applies some other rules:
    Sheet name MUST be unique in the workbook and MUST NOT contain the any of the following characters:
    
    0x0000
    
    0x0003
    
    colon (:)
    
    backslash (\)
    
    asterisk (*)
    
    question mark (?)
    
    forward slash (/)
    
    opening square bracket ([)
    
    closing square bracket (])
    
    The string MUST NOT begin or end with the single quote (') character.
    
    See WorkbookUtil.createSafeSheetName(String nameProposal) for a safe way to create valid names
    Parameters:
    
    sheetname - The name to set for the sheet.
    
    Returns:
    
    Sheet representing the new sheet.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the name is null or invalid or workbook already contains a sheet with this name
    
    See Also:
    
    WorkbookUtil.createSafeSheetName(String nameProposal)
  - cloneSheet
```
Sheet cloneSheet(int sheetNum)
```
    Create an Sheet from an existing sheet in the Workbook.
    
    Returns:
    
    Sheet representing the cloned sheet.
  - sheetIterator
```
java.util.Iterator<Sheet> sheetIterator()
```
    Returns an iterator of the sheets in the workbook in sheet order. Includes hidden and very hidden sheets.
    
    Returns:
    
    an iterator of the sheets.
  - getNumberOfSheets
```
int getNumberOfSheets()
```
    Get the number of spreadsheets in the workbook
    
    Returns:
    
    the number of sheets
  - getSheetAt
```
Sheet getSheetAt(int index)
```
    Get the Sheet object at the given index.
    
    Parameters:
    
    index - of the sheet number (0-based physical & logical)
    
    Returns:
    
    Sheet at the provided index
    
    Throws:
    
    java.lang.IllegalArgumentException - if the index is out of range (index < 0 || index >= getNumberOfSheets()).
  - getSheet
```
Sheet getSheet(java.lang.String name)
```
    Get sheet with the given name
    
    Parameters:
    
    name - of the sheet
    
    Returns:
    
    Sheet with the name provided or null if it does not exist
  - removeSheetAt
```
void removeSheetAt(int index)
```
    Removes sheet at the given index
    
    Parameters:
    
    index - of the sheet to remove (0-based)
  - createFont
```
Font createFont()
```
    Create a new Font and add it to the workbook's font table
    
    Returns:
    
    new font object
  - findFont
```
Font findFont(boolean bold,
              short color,
              short fontHeight,
              java.lang.String name,
              boolean italic,
              boolean strikeout,
              short typeOffset,
              byte underline)
```
    Finds a font that matches the one with the supplied attributes
    
    Returns:
    
    the font with the matched attributes or null
  - getNumberOfFonts
```
@Removal(version="4.2")
short getNumberOfFonts()
```
    Deprecated.
    use getNumberOfFontsAsInt() instead
    
    Get the number of fonts in the font table
    
    Returns:
    
    number of fonts
  - getNumberOfFontsAsInt
```
int getNumberOfFontsAsInt()
```
    Get the number of fonts in the font table
    
    Returns:
    
    number of fonts
    
    Since:
    
    4.0.0
  - getFontAt
```
@Removal(version="4.2")
Font getFontAt(short idx)
```
    Deprecated.
    use getFontAt(int)
    
    Get the font at the given index number
    
    Parameters:
    
    idx - index number (0-based)
    
    Returns:
    
    font at the index
  - getFontAt
```
Font getFontAt(int idx)
```
    Get the font at the given index number
    
    Parameters:
    
    idx - index number (0-based)
    
    Returns:
    
    font at the index
    
    Since:
    
    4.0.0
  - createCellStyle
```
CellStyle createCellStyle()
```
    Create a new Cell style and add it to the workbook's style table
    
    Returns:
    
    the new Cell Style object
    
    Throws:
    
    java.lang.IllegalStateException - if the number of cell styles exceeded the limit for this type of Workbook.
  - getNumCellStyles
```
int getNumCellStyles()
```
    Get the number of styles the workbook contains
    
    Returns:
    
    count of cell styles
  - getCellStyleAt
```
CellStyle getCellStyleAt(int idx)
```
    Get the cell style object at the given index
    
    Parameters:
    
    idx - index within the set of styles (0-based)
    
    Returns:
    
    CellStyle object at the index
  - write
```
void write(java.io.OutputStream stream)
    throws java.io.IOException
```
    Write out this workbook to an Outputstream.
    
    Parameters:
    
    stream - - the java OutputStream you wish to write to
    
    Throws:
    
    java.io.IOException - if anything can't be written.
  - close
```
void close()
    throws java.io.IOException
```
    Close the underlying input resource (File or Stream), from which the Workbook was read.
    Once this has been called, no further operations, updates or reads should be performed on the Workbook.
    
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Specified by:
    
    close in interface java.io.Closeable
    
    Throws:
    
    java.io.IOException
  - getNumberOfNames
```
int getNumberOfNames()
```
    Returns:
    
    the total number of defined names in this workbook
  - getName
```
Name getName(java.lang.String name)
```
    Parameters:
    
    name - the name of the defined name
    
    Returns:
    
    the defined name with the specified name. null if not found.
  - getNames
```
java.util.List<? extends Name> getNames(java.lang.String name)
```
    Returns all defined names with the given name.
    
    Parameters:
    
    name - the name of the defined name
    
    Returns:
    
    a list of the defined names with the specified name. An empty list is returned if none is found.
  - getAllNames
```
java.util.List<? extends Name> getAllNames()
```
    Returns all defined names.
    
    Returns:
    
    a list of the defined names. An empty list is returned if none is found.
  - getNameAt
```
@Deprecated
@Removal(version="5.0.0")
Name getNameAt(int nameIndex)
```
    Deprecated.
    4.0.0. New projects should avoid accessing named ranges by index.
    
    Parameters:
    
    nameIndex - position of the named range (0-based)
    
    Returns:
    
    the defined name at the specified index
    
    Throws:
    
    java.lang.IllegalArgumentException - if the supplied index is invalid
  - createName
```
Name createName()
```
    Creates a new (uninitialised) defined name in this workbook
    
    Returns:
    
    new defined name object
  - getNameIndex
```
@Deprecated
@Removal(version="3.20")
int getNameIndex(java.lang.String name)
```
    Deprecated.
    3.18. New projects should avoid accessing named ranges by index. Use getName(String) instead.
    
    Gets the defined name index by name
    Note: Excel defined names are case-insensitive and this method performs a case-insensitive search.
    
    Parameters:
    
    name - the name of the defined name
    
    Returns:
    
    zero based index of the defined name. -1 if not found.
  - removeName
```
@Deprecated
@Removal(version="3.20")
void removeName(int index)
```
    Deprecated.
    3.18. New projects should use removeName(Name).
    
    Remove the defined name at the specified index
    
    Parameters:
    
    index - named range index (0 based)
  - removeName
```
@Deprecated
@Removal(version="3.20")
void removeName(java.lang.String name)
```
    Deprecated.
    3.18. New projects should use removeName(Name).
    
    Remove a defined name by name
    
    Parameters:
    
    name - the name of the defined name
  - removeName
```
void removeName(Name name)
```
    Remove a defined name
    
    Parameters:
    
    name - the name of the defined name
  - linkExternalWorkbook
```
int linkExternalWorkbook(java.lang.String name,
                         Workbook workbook)
```
    Adds the linking required to allow formulas referencing the specified external workbook to be added to this one.
    In order for formulas such as "[MyOtherWorkbook]Sheet3!$A$5" to be added to the file, some linking information must first be recorded. Once a given external workbook has been linked, then formulas using it can added. Each workbook needs linking only once.
    This linking only applies for writing formulas. To link things for evaluation, see FormulaEvaluator.setupReferencedWorkbooks(java.util.Map)
    
    Parameters:
    
    name - The name the workbook will be referenced as in formulas
    
    workbook - The open workbook to fetch the link required information from
  - setPrintArea
```
void setPrintArea(int sheetIndex,
                  java.lang.String reference)
```
    Sets the printarea for the sheet provided
    i.e. Reference = $A$1:$B$2
    
    Parameters:
    
    sheetIndex - Zero-based sheet index (0 Represents the first sheet to keep consistent with java)
    
    reference - Valid name Reference for the Print Area
  - setPrintArea
```
void setPrintArea(int sheetIndex,
                  int startColumn,
                  int endColumn,
                  int startRow,
                  int endRow)
```
    For the Convenience of Java Programmers maintaining pointers.
    
    Parameters:
    
    sheetIndex - Zero-based sheet index (0 = First Sheet)
    
    startColumn - Column to begin printarea
    
    endColumn - Column to end the printarea
    
    startRow - Row to begin the printarea
    
    endRow - Row to end the printarea
    
    See Also:
    
    setPrintArea(int, String)
  - getPrintArea
```
java.lang.String getPrintArea(int sheetIndex)
```
    Retrieves the reference for the printarea of the specified sheet, the sheet name is appended to the reference even if it was not specified.
    
    Parameters:
    
    sheetIndex - Zero-based sheet index (0 Represents the first sheet to keep consistent with java)
    
    Returns:
    
    String Null if no print area has been defined
  - removePrintArea
```
void removePrintArea(int sheetIndex)
```
    Delete the printarea for the sheet specified
    
    Parameters:
    
    sheetIndex - Zero-based sheet index (0 = First Sheet)
  - getMissingCellPolicy
```
Row.MissingCellPolicy getMissingCellPolicy()
```
    Retrieves the current policy on what to do when getting missing or blank cells from a row.
    The default is to return blank and null cells. Row.MissingCellPolicy
  - setMissingCellPolicy
```
void setMissingCellPolicy(Row.MissingCellPolicy missingCellPolicy)
```
    Sets the policy on what to do when getting missing or blank cells from a row. This will then apply to all calls to Row.getCell(int) }. See Row.MissingCellPolicy
  - createDataFormat
```
DataFormat createDataFormat()
```
    Returns the instance of DataFormat for this workbook.
    
    Returns:
    
    the DataFormat object
  - addPicture
```
int addPicture(byte[] pictureData,
               int format)
```
    Adds a picture to the workbook.
    
    Parameters:
    
    pictureData - The bytes of the picture
    
    format - The format of the picture.
    
    Returns:
    
    the index to this picture (1 based).
    
    See Also:
    
    PICTURE_TYPE_EMF, PICTURE_TYPE_WMF, PICTURE_TYPE_PICT, PICTURE_TYPE_JPEG, PICTURE_TYPE_PNG, PICTURE_TYPE_DIB
  - getAllPictures
```
java.util.List<? extends PictureData> getAllPictures()
```
    Gets all pictures from the Workbook.
    
    Returns:
    
    the list of pictures (a list of PictureData objects.)
  - getCreationHelper
```
CreationHelper getCreationHelper()
```
    Returns an object that handles instantiating concrete classes of the various instances one needs for HSSF and XSSF.
  - isHidden
```
boolean isHidden()
```
    Returns:
    
    false if this workbook is not visible in the GUI
  - setHidden
```
void setHidden(boolean hiddenFlag)
```
    Parameters:
    
    hiddenFlag - pass false to make the workbook visible in the GUI
  - isSheetHidden
```
boolean isSheetHidden(int sheetIx)
```
    Check whether a sheet is hidden.
    Note that a sheet could instead be set to be very hidden, which is different (isSheetVeryHidden(int))
    
    Parameters:
    
    sheetIx - Number
    
    Returns:
    
    true if sheet is hidden
    
    See Also:
    
    getSheetVisibility(int)
  - isSheetVeryHidden
```
boolean isSheetVeryHidden(int sheetIx)
```
    Check whether a sheet is very hidden.
    This is different from the normal hidden status (isSheetHidden(int))
    
    Parameters:
    
    sheetIx - sheet index to check
    
    Returns:
    
    true if sheet is very hidden
    
    See Also:
    
    getSheetVisibility(int)
  - setSheetHidden
```
void setSheetHidden(int sheetIx,
                    boolean hidden)
```
    Hide or unhide a sheet. Please note that the sheet currently set as active sheet (sheet 0 in a newly created workbook or the one set via setActiveSheet()) cannot be hidden.
    
    Parameters:
    
    sheetIx - the sheet index (0-based)
    
    hidden - True to mark the sheet as hidden, false otherwise
    
    See Also:
    
    setSheetVisibility(int, SheetVisibility)
  - getSheetVisibility
```
SheetVisibility getSheetVisibility(int sheetIx)
```
    Get the visibility (visible, hidden, very hidden) of a sheet in this workbook
    
    Parameters:
    
    sheetIx - the index of the sheet
    
    Returns:
    
    the sheet visibility
    
    Since:
    
    POI 3.16 beta 2
  - setSheetVisibility
```
void setSheetVisibility(int sheetIx,
                        SheetVisibility visibility)
```
    Hide or unhide a sheet. Please note that the sheet currently set as active sheet (sheet 0 in a newly created workbook or the one set via setActiveSheet()) cannot be hidden.
    
    Parameters:
    
    sheetIx - the sheet index (0-based)
    
    visibility - the sheet visibility to set
    
    Since:
    
    POI 3.16 beta 2
  - addToolPack
```
void addToolPack(UDFFinder toopack)
```
    Register a new toolpack in this workbook.
    
    Parameters:
    
    toopack - the toolpack to register
  - setForceFormulaRecalculation
```
void setForceFormulaRecalculation(boolean value)
```
    Whether the application shall perform a full recalculation when the workbook is opened.
    Typically you want to force formula recalculation when you modify cell formulas or values of a workbook previously created by Excel. When set to true, this flag will tell Excel that it needs to recalculate all formulas in the workbook the next time the file is opened.
    
    Note, that recalculation updates cached formula results and, thus, modifies the workbook. Depending on the version, Excel may prompt you with "Do you want to save the changes in filename?" on close.
    
    Parameters:
    
    value - true if the application will perform a full recalculation of workbook values when the workbook is opened
    
    Since:
    
    3.8
  - getForceFormulaRecalculation
```
boolean getForceFormulaRecalculation()
```
    Whether Excel will be asked to recalculate all formulas when the workbook is opened.
    
    Since:
    
    3.8
  - getSpreadsheetVersion
```
SpreadsheetVersion getSpreadsheetVersion()
```
    Returns the spreadsheet version of this workbook
    
    Returns:
    
    SpreadsheetVersion enum
    
    Since:
    
    3.14 beta 2
  - addOlePackage
```
int addOlePackage(byte[] oleData,
                  java.lang.String label,
                  java.lang.String fileName,
                  java.lang.String command)
           throws java.io.IOException
```
    Adds an OLE package manager object with the given content to the sheet
    
    Parameters:
    
    oleData - the payload
    
    label - the label of the payload
    
    fileName - the original filename
    
    command - the command to open the payload
    
    Returns:
    
    the index of the added ole object, i.e. the storage id
    
    Throws:
    
    java.io.IOException - if the object can't be embedded

Interface Workbook

Field Summary

Method Summary

Methods inherited from interface java.lang.Iterable

Field Detail

PICTURE_TYPE_EMF

PICTURE_TYPE_WMF

PICTURE_TYPE_PICT

PICTURE_TYPE_JPEG

PICTURE_TYPE_PNG

PICTURE_TYPE_DIB

Method Detail

getActiveSheetIndex

setActiveSheet

getFirstVisibleTab

setFirstVisibleTab

setSheetOrder

setSelectedTab

setSheetName

getSheetName

getSheetIndex

getSheetIndex

createSheet

createSheet

cloneSheet

sheetIterator

getNumberOfSheets

getSheetAt

getSheet

removeSheetAt

createFont

findFont

getNumberOfFonts

getNumberOfFontsAsInt

getFontAt

getFontAt

createCellStyle

getNumCellStyles

getCellStyleAt

write

close

getNumberOfNames

getName

getNames

getAllNames

getNameAt

createName

getNameIndex

removeName

removeName

removeName

linkExternalWorkbook

setPrintArea

setPrintArea

getPrintArea

removePrintArea

getMissingCellPolicy

setMissingCellPolicy

createDataFormat

addPicture

getAllPictures

getCreationHelper

isHidden

setHidden

isSheetHidden

isSheetVeryHidden

setSheetHidden

getSheetVisibility

setSheetVisibility

addToolPack

setForceFormulaRecalculation

getForceFormulaRecalculation

getSpreadsheetVersion

addOlePackage