excel 2010 file corrupted

have an inventory sheet for a clinic id rather not have to re-create, anyone know of/used any software/vendor to restore excel data quick and easy? free is obviously preferable but if its cheap i cant complain, 3 hours of work in it so if its expensive ill just redo the inventory.

/havent had time to google yet, maybe tonight

XLSX Repair

Try this way:
*If you can, open the file.
**Go to Save As.
*Select XML Spreadsheet from the list of possible formats and hit Save.
**Close the file and reopen in Excel.
**Go to Save As.
**Select an excel format (ex. Microsoft Excel 97-2003 or Excel Workbook) from the drop-down list.
**Change the title to prevent saving over the (corrupted) original.
**Hit Save.

Or:
XLSX Repair Kit. The latest corrupt XLSX file repair software featuring a powerful data recovery core and a convenient step-by-step wizard for extra convenience.
For more information: http://www.xlsx.repair/

If doesn't help look for the answer here: http://www.filerepairforum.com/forum/microsoft/microsoft-aa/excel/653-i-...