Is there a simple function to delete or remove all the existing cell data from within an existing worksheet?
I have in mind something like $objPHPExcel->emptySheetByIndex($sheetIndex) but of course that function doesn't exist.
For a workaround I am looking at having to remove the existing sheet and recreate it.
It would also be nice if somewhere, besides in the source code, there was a list of all the functions for developers. I haven't been able to find that in the developer documetation or anywhere