Add another author to the meta data of the file.
Convert excel column name to integer index
Convert from excel date number to R Date type
Convert from excel time number to R POSIXct type.
Return excel cell coordinates from (x,y) coordinates
Get the names of the authors from the meta data of the file.
Get the date origin an xlsx file is using
Returns a list of all styles in the workbook
Insert the current plot into a worksheet
Open a Microsoft Excel file (xls/xlsx) or an openxlsx Workbook
Set page margins, orientation and print scaling
Read from an Excel file or Workbook object
Remove custom row heights from a worksheet
Set the author who modified the file last.
Set worksheet gridlines to show or hide.
helper function to create tempory directory for testing purpose
Write a character vector as an Excel Formula