In case, Adobe is unable to parse the file, first of all, check the format of the file. If the file format is not supported, we can change the extension of the same.

If your Illustrator .ai file is corrupted, you can try the following steps to try and recover it. Open the .ai file with Adobe Acrobat Reader; Save the file as a .PDF ...

Run Adobe Reader. If you do not have Adobe Reader installed, navigate to the Adobe website to download the free program. Select "File" from the top toolbar and then "Open." ...