suddenly I don't open mpp files

Hi Dave,
considering that I don't trust ICT very much, since yesterday I have redeveloped the project again. I just finished after two days of hard work. I just followed your great backup tip right now.
Anyway, out of curiosity I want to see if ICT can repair the previous file.
Thanks a lot
Demetrio

demetrio61 --

Microsoft Project has a feature that will automatically make a backup copy of your project when you save it. If you are able to get the project repaired, then open it and try the following:

1. Click File > Save As and then click the Browse button on the Save As page.
2. At the bottom of the Save As dialog, click the Tools pick list button.
3. On the Tools menu, click the General Options item.
4. In the Save Options dialog, select the Always Create Backup option, and then click the OK button.
5. Click the Save button.
6. If prompted to overwrite the existing project, click the Yes button.

After completing the above steps, Microsoft Project will automatically create a backup file of the project file in the same folder as the project file. The backup file has the same name as the project, except with the file extension .BAK. The software will update the backup file every time you save your project, so that you always have a current copy of the project information in the backup file.

If you ever need to revert to the backup file, you will need to click File > Open > Browse and then navigate to the folder containing the backup files. In the Open dialog, In the lower right corner of the Open dialog, click the file type pick list (it displays Projects (*.mpp) as the default file type), and select the All Files (*.*) option. You will now see the backup project, so that you can select it and open it.

Even if you are not able to repair the corrupted project and need to create it again from scratch, you will still be able to create a backup of it using the preceding steps. Hope this helps.

First of all I thank Dale for taking the time.
I have just opened an internal ticket to my ICT in order to see if it can resolve the issue possibly with the support of Microsoft. In case this fails I will redevelop the project again.

demetrio61 --

No, I think your reasoning is not correct. I doubt the corrupted file can be repaired, but if you want to pay someone to repair it, give them your money and hope for the best. And if they are able to repair your corrupted file, please let us know.

Also, Microsoft will never add an "on demand" link in this user forum. After working with Microsoft products for many years, I can assure you that Microsoft DOES NOT provide free support and they WILL NOT give you direct access to their software developers. If you want free help, this user forum is staffed by volunteers such as myself. Otherwise, you can open a support ticket with Microsoft Support, and pay for the help.

Hope this helps.

I investigated 5 minutes in internet and found someone who claims they can repair the file for a fee.
My observation that I would like to share with everyone: it is very likely (to be verified) that there is a way to repair this file. There are conditions to involve some Microsoft Project developers in the discussion.
I start from the idea that if there is a way to repair a file they know it.
Perhaps this community is missing an "on-demand link" with the MS project developers.
Is my reasoning correct?
Demetrio