[palosanto]

If you want to reinstall, do the following:

1) Go to Settings->About->View License->Uninstall so you can reuse the license key
2) Copy the contents of C:\Users\<your username>\AppData\Local\Packages\Zubersoft.MobileSheets_9fx6hze9e3cne\LocalState somewhere safe. Your database, song files and application settings are all stored under there, so this will safeguard all of that
3) You can then uninstall, reinstall, copy the contents back and then enter the license key when prompted

If you still have the problem, we can start trying to explore whether there is some weird kind of issue with file explorer on your device.

Mike

When I clicked uninstall I got a message "The number of transfers has been exceeded ... contact support"  or something like that not sure why, it's the first time I do that.
Can I still uninstall and reinstall?