|Subject:||#DIV/0! not handled, giving warnings|
Some spreadsheets produce the warning Argument "#DIV/0!" isn't numeric in int at /usr/share/perl5/vendor_perl/Spreadsheet/XLSX/Fmt2007.pm line 98. This string needs to be handled specially in the same way as #N/A or #VALUE! In fact I would suggest that any cell content beginning # and ending ! should be treated as a 'bad value' rather than attempting to numify it.