it could happen only with adobe product

[Lustf62]

I don’t like Adobe company, but I have to use some their products, for example Adobe Illustrator. Several days ago I opened .ai file and saw - An unknown error has occurred. I repeated the process couple times, error didn’t disappear. Also tech support of Adobe, didn’t aid me, that’s why I don’t like it. Did someone heard how to restore adobe illustrator files?

 

[Fardringle]

I haven't used Illustrator, but if you don't have a backup copy of the file, try the suggestions listed here:
https://forums.adobe.com/thread/1134974

 

[corkyg]

This might be worth a look:

https://helpx.adobe.com/illustrator/using/crash-file-data-recovery.html

 

[DaveSimmons]

Also learn from this: never only have one copy of anything that you care about.

Have at least one copy external to the PC, and ideally another copy or more off-site. Amazon S3 and glacier storage is cheap, and easy to use with Cloudberry Bucket Explorer.

Added to that, never have only one version of a document that you care about. Document corruption happens, accidental bad edits happen. If you have only one version copied everywhere then you will write over all of your copies with the damaged version.

 

[Lustf62]

I am very appreciated to you guys for all the tips.

 

[VirtualLarry]

If you have it enabled in Windows 10, File History might be able to pull up a previous, undamaged copy of the file.

 

[PliotronX]

If you have it enabled in Windows 10, File History might be able to pull up a previous, undamaged copy of the file.

In lieu of external storage or a network share that hopefully is backed up, this is the best feature ever.