PSQ files are storyboards from Adobe Premiere, and it is most likely only this software that can access, open, or export this type of content, if that is even possible. This conversion is probably searched by users who have found old files on their discs and are not really sure how to recover them, but no source on the Internet mentions a viable solution or actually the use of this file type. It may be something very old and no longer possible, in any case, maybe long-time Premiere users can help you out with your issues and reaching out to the Adobe community might be best.
Updated: February 16, 2024