Open the Files app and browse through your files, or use the search bar to find the zip file you want to unzip. Tap on the zip file and select the Extract option.

Open GApps has been the most popular source for these zip files for a while now, and it is now making builds for Android 8.1 Oreo.

An Android mobile device is somewhat like a highly portable computer. As with computers, your Android phone and tablet can open rar files. Here's how to do it.