Unable to access Excel through My Documents

Since obtaining a Windows update a couple of days ago, I have been unable to access my Excell spreadsheets through My Documents. The screen just freezes up and I can't remove it until I go through Windows Task Manager to stop the running of the Excel program.  (I am able to access the spreadsheets through the Excel program.)  I'm assuming that this had something to do with the Windows update that i downloaded. Does anyone have any advice here? Thanks