• Food & Beverage, Cooking
• CSO file extraction
• June 28, 2026

A CSO file is most commonly known as a Compressed ISO file, which means it is a compressed version of an ISO disc image. It is often associated with PSP game backups, disc images, and storage-saving file compression. Instead of keeping the full disc image in a large ISO format, the CSO format reduces the file size while still preserving …