Sorry you may have to let it try to update. You can try to start the program then turn off your WiFi or unplug the internet before you open the return. Don't know if that will work.
In the Windows program you would have needed to disable the updates before closing the last time. That's the first thing I do when I install the program.
You can only disable the Updates in the Windows version. As soon as I install the Windows Desktop program and it updates the first time then I go to Online-Updater Preferences and select Ask me before getting updates.
In the Mac program updates are automatic when you open the program. I think you can first turn off your internet or wifi so it won't check.
If you restart your computer and turn off all networking, you may be able to open the program.
thanks for your response. However, I have done that and it does not work.