Man pages matching name spreadsheet::writeexcel::biffwriter in section 3pm:

Spreadsheet::WriteExcel::BIFFwriter.3pm.en	debian 10 / libspreadsheet-writeexcel-perl
Spreadsheet::WriteExcel::BIFFwriter.3pm.en	debian 11 / libspreadsheet-writeexcel-perl
Spreadsheet::WriteExcel::BIFFwriter.3pm.en	debian 12 / libspreadsheet-writeexcel-perl