RhysCrowley

Hope this information will be helpful for you.

1. Create a new file in Illustrator with just a simple square and save this file. 2. Open the file in Text Edit. 3. Copy the last couple of lines from that file 4. Open your corrupted file in TextEdit. 5.Add the code to the end of your corrupted file and save it. 6.Change the extension to .ai and you should be able to open up your file in Adobe Illustrator. 7. Аlso I advise to try this .illustrator recovery tool Illustrator Recovery Toolbox if that doesn't solve the problem. https://www.oemailrecovery.com/illustrator_recovery.html

Or if any steps couldn't aid you: 1) Open the preferences file and look for the entry named "enableContentRecovery", change the value from 0 to 1. This turns on the feature. 2) Launch Illustrator and choose "File>Open". Select the file from which you wish to recover the roundtrip information. 3) Click "OK" while holding down the command, shift and option keys (control, shift and alt on Windows)