: You may find that further compressing it yields little result if it was generated from random data, which is typical for "GEN" speed-test files.
: Use the SHA or CRC checksum feature in 7-Zip to ensure the file hasn't been corrupted during download. GEN100MB15807.7z
.7z format specification — py7zr – 7-zip archive library : You may find that further compressing it
: If you are on Windows 11 , you can natively right-click and extract .7z files without third-party software. Performance Expectations If this is indeed a 100MB test file: Performance Expectations If this is indeed a 100MB
: "15807" is likely a serial or version number specific to the system or user that created it. Safety and Handling
: The .7z extension indicates a 7-Zip compressed archive . These are used to group multiple files into one smaller, often encrypted, container.