Hi,
You can follow this article to repair your corrupt workbook:
http://office.microsoft.com/en-in/excel-help/repairing-a-corrupted-workbook-HA010342840.aspx?CTT=1
If above doesn't make any difference, you may need to find some third-party method to recover your data.
Good Luck!
Steve Fan
TechNet Community Support
- Marked as answer by chernoskrit Saturday, August 02, 2014 7:00 PM
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To download: http://www.softmagnat.com/excel-recovery.html