Recently installed Microsoft office 2010 pro and certain excel files are very slow to open. Every other program opens just fine, however when I open certain documents they can take up to 2-3 minutes to open. If I try to open multiple excel documents at the same time my computer freezes. I disabled all of the add-ons, however it did not do anything. Does anyone have any ideas on how to fix this issue?
System information: Intel i5- 6GB Ram, Windows ultimate edition