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Thread: cannot open mpp file

  1. #1
    Join Date
    Sep 2004
    Posts
    8
    I am using Windows 7 running with MS Project 2007. I received a project file which is about 204 kb in size and has 100 tasks in total. When I was trying to open it, I received an error message saying “the operation cannot be completed because the source file contains invalid project data or the total number of rows would exceed 1,048,000.”

    This error actually occurs after I made a change in description of 1 task. Now I don’t know how can I fix it. Can somebody help me for the same?

  2. #2
    Join Date
    Sep 2004
    Posts
    77

    Re: cannot open mpp file

    Only two things can happen. First, probably you have the corrupt file now. Second, you should try reverting back to your last saved version, obviously one that does open. If it is opening properly then file fragmentation may be the basic cause. To make sure this isn’t the problem: open your .mpp file then select File/Save immediately before doing any other action.

    Only if you save immediately after opening does Project defragment its .mpp file. If you do not have external links in your file, (i.e. resource pool, master with subprojects, etc.), then a good practice is to always use Save As instead of a straight Save with your file after editing.

  3. #3
    Join Date
    Feb 2006
    Posts
    331

    Re: cannot open mpp file

    One more thing you need to tale care is make sure you have SP2 installed, the release version of Project 2007 was very bug ridden.

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