Before attempting to install a .deb package on Arch Linux, it is crucial to first check if the software is available in the official Arch repositories or the Arch User Repository (AUR). This step ...

He is the method of installing .deb files using the Terminal using standard linux commands: Installation using the Terminal Go into Settings -> Security -> Developer Mode and then Enable ...

These are installation packages, much like .msi or .exe files on Windows. Chrome OS recently added support for opening these from the Files app, so it's very easy to install .deb files.

Opening a .deb file on Chrome OS Canary (source) On most Debian-based Linux distributions, users can double-click on .deb packages to install them.