@Phaedrux said in Viewing config files offline:
Always a good idea to keep an offline copy of the entire SD card and make a backup of the config files every time you make changes.
Better still maintain a copy of the contents of the SD card on a computer, back that up to a NAS and/or cloud storage, only ever make any changes to that copy and only ever upload to the SD card (never alter the contents of the SD card directly).