How to Run/install deb files Open the terminal and put in this code sudo apt install gdebi -y 1. go to the file manager and locate the deb files 2. Right-click on the deb file and choose Open With Other Application. 3. Mark the GDebi Package Installer and click Select. 4. The installer loads the deb package and shows the software description. Click Install Package to start the installation. 5. wait then profit