You can open the Excel 2003 file in Excel 2007 and there you can Save As Excel 97-2003 Workbook

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Kind regards,

Niek Otten
Microsoft MVP - Excel

"fda secretary" wrote in message
...
| At the office I am using Excel 2003, but at home I have Excel 2007 running on
| Windows Vista. Is it possible to open and make changes to a copied workbook
| from 2003 on my computer at home with 2007? If so, once the changes are made
| can it be copied back into 2003?