It is possible to utilize RAR functions inside of many other file management applications. Typical approaches suitable for such applications are listed below.
Tap on archive name or apply "Open with" command and then select RAR in application list to open an archive in RAR.
Many file managers include a command named "Share" or "Send" allowing to send file names to other applications. If you select files, activate this function and choose RAR as destination application, you will be able to set compression parameters in archiving dialog and compress selected files. If folder containing selected files is writable, RAR will propose it to create an archive, otherwise another writable folder is selected.
If you selected only a single archive and used "Share" or "Send" command, RAR will extract it instead of archiving it again.
After processing "Share" or "Send", RAR is closed automatically. If current folder in your application is not refreshed, it may be necessary to refresh it manually to see a newly created archive or extracted files.
If you wish to send files from RAR to another application, select files in RAR file list and use "Send" command in Options menu.