Need help (URGENT)

I recently gave my computer away...It was a brand new pentium 4 with windows XP...I had StarOffice on there as my text/spreadsheet program. Anyways, I had a file saved under the spreadsheet format of StarOffice. Before I got rid of my computer I saved it to my hotmail account. I need this file by tonight and my moms computer (windows 98) wont let me open it AT ALL...I tried opening it through all kinds of programs and it still wont open...I even went over to my sisters to try her computer (Microsoft Excel) and it still wont open...any help would be greatly appreciated...Thanks.