You might be able to bypass updating if you turn off your internet before opening the program. Also, for Windows, up in the top menu, you can set my "Updater Preferences" to "Always Ask" or more commonly set to "I don't have an internet connection" , and then I am not forced to update....and can manually force an update when I choose to do so. And then I can open my file(s) at any time with no forced upgrade.
