An .ezp file is essentially a compressed archive (ZIP-like) containing XML metadata and media references. If the file is corrupted only in its header, you may extract the data:
For professionals, the only viable "unlock" strategy is to utilize EDIUS’s built-in XML export features to migrate data, rather than attempting to force the proprietary .ezp format into submission. edius project file ezp unlock
If you are facing a specific issue with an .ezp file, consider these solutions: edius project file ezp unlock
Use the Consolidate Project tool to gather all media into one folder for easy transfer. edius project file ezp unlock