Android's security scoped storage (Android 11+) blocks certain ISO read operations. Fix: Move the ISO file from /Downloads to /Android/data/ru.zdevs.zarchiver.pro/files/ and retry. This gives ZArchiver direct read/write permissions.
If you encounter issues, extract on a Windows PC using 7-Zip, PowerISO, or dedicated Xbox tools, then transfer the extracted folder to your Android device for inspection. xbox 360 iso extract android