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 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 worksheet gridlines to show or hide.
helper function to create tempory directory for testing purpose
Write a character vector as an Excel Formula