: Check the file size or hash (MD5/SHA256) against the original to ensure it isn't truncated. Manual Hex Editing
→ Then type x to extract, o to open PYZ, etc. : Check the file size or hash (MD5/SHA256)
PyInstaller appends its data archive to the end of the executable. To find this archive, extraction tools look for a "cookie" located near the end of the file. : 4D 45 49 0C 0B 0A 0B 0E . o to open PYZ
This is the most common cause. You might be assuming the .exe was compiled with PyInstaller, but it was actually compiled using: : Check the file size or hash (MD5/SHA256)
file created by PyInstaller. It signals a fundamental mismatch between the extraction tool's expectations and the file's actual structure. The Mechanics of the "Cookie"