I was working on an AI file when my system turned off due to electricity failure. When I tried to open the file, it displayed an error which states, "Acrobat PDF file format is having difficulties. The file is damaged and could not be repaired." I'm using Adobe Illustrator 10. What should I do for the problem?
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there is not much you can do.
However there may be a TMP file in the same folder, you can try renaming it to AI and see if this opens. Helped me on a couple of occasions but also has not worked in the past.
For more: https://forums.adobe.com/message/6492212