'Can't Find Project Or Library' in MS Excel 2010
To resolve this issue you can use below workaround. Open the Excel Click 'ALT +F1' to switch to the Visual Basic Editor Go to Tools -> References Click to clear the check box of the library which is marked as Missing and then click 'OK' Or Restore the referenced file in the path which is shown in the dialog box Or If the referenced file is in a new location,clear the Missing reference and Create a new reference to that file. This link provides the more information about this issue : http://support.microsoft.com/kb/282331