I am new to Microsoft Project 2007. When I opened a project today and then entered some task information in a new file, then I didnt copy for anywhere. So after that I tried to use the file to save as excel pivot table but then got some kind of error that says "You are trying to save a file saved in an older file format. Your settings do not allow you to save the file in older file formats. To change your setting, navigate to the "Security" tab in the Options dialog box." Can anyone tell me how to solve this error? Thanks.
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