: Right-click the file and select "Extract" or "Open archive" .

However, based on the naming convention (a long string of numbers followed by .7z ), this file is likely:

: The .7z extension means it was created using 7-Zip . It likely contains multiple files or large data compressed into one package to save space. How to see the content: Install a Tool : Download 7-Zip (Windows) or Keka (Mac).