# Read, Write and Edit xlsx Files

## Documentation for package ‘openxlsx’ version 4.2.4

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

%||% | If NULL then ...
activeSheet | Get/set active sheet of the workbook
activeSheet<- | Get/set active sheet of the workbook
addCreator | Add another author to the meta data of the file.
addFilter | Add column filters
addStyle | Add a style to a set of cells
addWorksheet | Add a worksheet to a workbook
all.equal | Check equality of workbooks
all.equal.Workbook | Check equality of workbooks
buildWorkbook | Build Workbook
cloneWorksheet | Clone a worksheet to a workbook
conditionalFormat | Add conditional formatting to cells
conditionalFormatting | Add conditional formatting to cells
convertFromExcelRef | Convert excel column name to integer index
convertToDate | Convert from excel date number to R Date type
convertToDateTime | Convert from excel time number to R POSIXct type.
copyWorkbook | Copy a Workbook object.
createComment | create a Comment object
createNamedRegion | Create a named region.
createStyle | Create a cell style
createWorkbook | Create a new Workbook object
databar | Add conditional formatting to cells
dataValidation | Add data validation to cells
deleteData | Delete cell data
freezePane | Freeze a worksheet pane
getBaseFont | Return the workbook default font
getCellRefs | Return excel cell coordinates from (x,y) coordinates
getCreators | Add another author to the meta data of the file.
getDateOrigin | Get the date origin an xlsx file is using
getNamedRegions | Get named regions
getSheetNames | Get names of worksheets
getStyles | Returns a list of all styles in the workbook
getTables | List Excel tables in a workbook
groupColumns | Group columns
groupRows | Group Rows
if_null_then | If NULL then ...
insertImage | Insert an image into a worksheet
insertPlot | Insert the current plot into a worksheet
int2col | Convert integer to Excel column
loadWorkbook | Load an existing .xlsx file
makeHyperlinkString | create Excel hyperlink string
mergeCells | Merge cells within a worksheet
modifyBaseFont | Modify the default font
names | get or set worksheet names
names.Workbook | get or set worksheet names
names<-.Workbook | get or set worksheet names
op.openxlsx | openxlsx Options
openXL | Open a Microsoft Excel file (xls/xlsx) or an openxlsx Workbook
openxlsx | xlsx reading, writing and editing.
openxlsxFontSizeLookupTable | Font Size Lookup tables
openxlsxFontSizeLookupTableBold | Font Size Lookup tables
openxlsx_getOp | openxlsx Options
openxlsx_options | openxlsx Options
openxlsx_setOp | openxlsx Options
pageBreak | add a page break to a worksheet
pageSetup | Set page margins, orientation and print scaling
protectWorkbook | Protect a workbook from modifications
protectWorksheet | Protect a worksheet from modifications
read.xlsx | Read from an Excel file or Workbook object
readWorkbook | Read from an Excel file or Workbook object
removeCellMerge | Create a new Workbook object
removeColWidths | Remove column widths from a worksheet
removeComment | Remove a comment from a cell
removeFilter | Remove a worksheet filter
removeRowHeights | Remove custom row heights from a worksheet
removeTable | Remove an Excel table in a workbook
removeWorksheet | Remove a worksheet from a workbook
renameWorksheet | Rename a worksheet
replaceStyle | Replace an existing cell style
saveWorkbook | save Workbook to file
setColWidths | Set worksheet column widths
setFooter | Set footer for all worksheets
setHeader | Set header for all worksheets
setHeaderFooter | Set document headers and footers
setLastModifiedBy | Add another author to the meta data of the file.
setRowHeights | Set worksheet row heights
sheets | Returns names of worksheets.
sheetVisibility | Get/set worksheet visible state
sheetVisibility<- | Get/set worksheet visible state
sheetVisible | Get worksheet visible state.
sheetVisible<- | Get worksheet visible state.
showGridLines | Set worksheet gridlines to show or hide.
ungroupColumns | Ungroup Columns
ungroupRows | Ungroup Rows
worksheetOrder | Order of worksheets in xlsx file
worksheetOrder<- | Order of worksheets in xlsx file
write.xlsx | write data to an xlsx file
writeComment | write a cell comment
writeData | Write an object to a worksheet
writeDataTable | Write to a worksheet as an Excel table
writeFormula | Write a character vector as an Excel Formula