[Zubersoft]

You will need to purchase MobileSheets through the Microsoft Store application on your Surface Pro (or my FastSpring store if you don't want to go through Microsoft). To transfer your library, the simplest way to handle this is to create a library backup file on your phone, transfer that to your Surface Pro and then restore your library using it. To do this, open MobileSheets on your phone, tap the three dots at the top right and then tap Settings->Backup and Restore->Backup Library. This will generate a .msb file in the folder you select which can be on the device or in the cloud. If you selected a local folder, transfer the file from that folder to the Surface Pro. Open MobileSheets on the Surface Pro, then go to Settings->Backup and Restore->Restore Library from Backup. After the restore completes, you will have access to your entire library on that device. 

Mike