Use an app like ZArchiver or RAR from the Google Play Store.
Use the command line with sudo apt install p7zip-full . 2. How to Extract the File HCE_2021.7z
If you have downloaded this file, follow these steps to access and use its contents: You need a file archiver that supports the 7z format. Use an app like ZArchiver or RAR from the Google Play Store
Download and install the official 7-Zip utility. HCE_2021.7z