Reading XLS file

I used a Mac to create an XLS spreadsheet (office 2004), then edited on a PC running office 2003, now I can no longer read that file on my Mac, it just displays a blank spreadsheet, i've tried using office 2008 on Mac, same problem

Any suggestions as to why I can no longer view on a Mac? thx

Strange. Can you share it with us so that we can take a look?

Unfortunately not, it is a password protected file containing private info

Have you tried saving it as a CSV file on the PC?

you could always try dl'ing open office/neo office (free) and see if that can open it.

Save the file one down level like excel 5.0/95 workbook or excel 97 - excel 2003 & 5.0/95 workbook on the PC side.