User checks out an excel from Laserfiche and works on it . While saving it to local it does not allow and the same save as window comes back again. Also when she tries check in to Laserfiche it shows an error saying the file is corrupted. Could you please suggest a solution.

One thing I noticed is that one of the tab looked like having issues and after deleting that tab from the excel document. Same file got checked in to Laserfiche.