User has the 'Online' version of Excel, and has somehow corrupted various formulae that now have a "Ref" content, so the totals doesn't calculate.

I solved the problem easily in the Desktop Excel, but can't see how to 'upload' the file to the Online version.

Never having dealt with the Online version, can anyone advise how to either fix the formula online, or upload the desktop workbook to replace what is there?

Ochimus