MS Project 10 file

I have a MS Project 10 mpp with 6000+ tasks that has become corrupted. We can still open and work with the file in Proj10, but it will not open in Proj13, which has now become our standard version.
I have tried all of the standard fixes without success (compact by saving on open, export to mpd/mdb/xml and reimport).
I was able to import the project to a new mpp file successfully, but this results in the assignment of new TASK_UIDs. It is important that we retain the original UIDs: I hit upon the idea of exporting the mpp to an mdb, using TASK_ID as a join field, updating TASK_UID to the corresponding TASK_UID in the corrupted file in all MSP_* tables in which TASK_UID appears, and then importing the result back into Project. This also failed, but I'm not sure why - only about a dozen of the original 6000+ records were imported back to Project.
We do have daily backups of the file but so far have not been able to determine when the corruption occurred. It was not within the past couple of months, which means that there have been countless edits to the file since the last good version was saved.
If anybody has any further suggestions I'd appreciate hearing them. Unfortunately, because this file resides in a secure environment it is not possible to turn it over to outside recovery specialists.

 

HI,

Set TASK_ID in MSP_TASKS to primary key and then re-open the mdb in Project. Now the tasks are all will there and will have the expected UIDs, so it seems will be work: you need to validate the file thoroughly.

If this does not help solve the problem, then I think it is better to try to do a mpp recovery in the online service Microsoft project repair online. How to repair a corrupted Microsoft Project *.mpp file online

May thus be able to recover it. this is just my assumption. it is necessary to test all methods. only pre-make a backup copy of the file!

 

Thank you very much for the help! you helped me a lot!