Help! Error - The document "X" could not be opened. The data is not in the correct format

OmniGraffle OmniGraffle for Mac
#1

Help! After a crash of my mac, I can no longer open a very treasured work and the error is as followed: “Error - The document “x” could not be opened. The data is not in the correct format.”

My Omnigraffle version is 7.5 (v181.4 r297378)

Any chance this can be resolved?

#2

This looks like something that the Omni support humans can help with - email them at support@omnigroup.com

Hope you can get it sorted

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