Microsoft Office Excel Error: Your changes could not be saved to ‘filename.xls’ because of a sharing violation. Try saving to a different file.
This error occurs when you launch attempt to save an Excel workbook under various different circumstances.
This solution has been specifcally tested on Microsoft Excel 2007 running on Windows 7.
The Excel file that is open at the time is stored on a network shared drive located on a Windows 2003 server.
It is likely that you will also receive the following error in addition to the sharing violation error:
The file you are trying to open, ‘filename.xls’, is in a different format than specified by the file extension. Verify that the file is not corrupted and is from a trusted source before opening the file . Do you want to open the file now?
It is thought that this error is being caused by a bug in the Excel 2007 Shell Extension msoshext.dll and only applies to MS Office SP1 and SP2 users.