On the ribbon, go to Review and then Unprotect Sheet.

Here is a great resource for using commands from a 2003 template and the
corresponding 2007 template for Excel.
http://office.microsoft.com/en-us/he...491511033.aspx
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Regards,

PJ
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"Mayumdwl" wrote:

The file I have opened was Excel 2003 version and when I open it in Excel
2007 the sheet is protected. Can you please advice how to unprotect it?