So keep the original 7z archive in-tact and open copied folder in hex editor (do not alter original file) and check Start and End Headers to fix the issue. In this case due to corruption 7-ZIP can't open some header from start or end of archive. When you try to open it you may see message “cannot open file 'a.7z' as archive”.
How to repair corrupted archive RAR or ZIP file? We know that file corrupt is one of reasons that lead to archive decompression failure.
Cannot Open The File As Dmg Archive Full.Cannot Open The File As Dmg Archive Youtube.
