04-10-2022, 10:37 AM
Please either try using Import->System File Browser or copy the file to the internal storage before importing. I'm not sure what OS version your tablet is running, but if it's 6.0 or higher the system file browser should get around the issues with your USB stick. As a side note, I did fix various issues with importing off USB sticks with version 3.4.8 of MobileSheetsPro. I'm not sure if that is the version you are currently running.
Mike
Mike