When I try to open my project, I get this error message: "Project cannot open the file, check that the file name & Path are correct, check that the file format is recognized by project"

It is a .mpp file, and was created with and had all modifications done with project 2003.

I have tried opening this file on other computers and I get the same error message.  

Please folks, any help!

Hi,

Based on the error message, please see this KB to troubleshoot it:

https://support.microsoft.com/en-us/kb/274394

Then, this Project MPP file may be corrupted, we may try to repair/recovery Project files, please see the threads about below.

https://social.technet.microsoft.com/Forums/projectserver/en-US/bf98d943-2945-490b-b28d-c6c225376893/recovering-corrupt-ms-project-files

https://social.technet.microsoft.com/Forums/ie/en-US/f4f04d2c-fd6a-491c-b96d-f1be5b6ed1a7/how-to-repair-ms-project-file?f

Hope it's helpful.

Regards,

George Zhao
TechNet Community Support

Alternative method (this does not apply for Project 2007 and later versions) only for MS Project 2003...

Save the file in the Microsoft Project Database format:

1. Open your problem file (it may help to turn off automatic calculation if the file is reluctant to open).
2. Select File/Save As...
3. Save as type: Project Database (*.mpd) then click Save.
4. Close the file.
5. Re-open it from the .mpd file.
6. Select File/Save As... and save it as an .mpp file again.

Look at helpful resources which contain different guides, solutions...

http://community.office365.com/en-us/f/172/t/276295.aspx

http://www.filerepairforum.com/forum/microsoft/microsoft-aa/project/1484-ms-project-2010-cannot-open-mpp-file

http://www.project.repairtoolbox.com/ Project Repair Toolbox