Full backup files cannot be opened or edited in your PC because it is protected by the system password.

To import them, go to [Menu] > [Import Card Data] > [Import Full Backup].

 

 

To download folder card text data from the app,  export folder backup data at [Menu] > [Export Backup] > [Folder Backup]. (Not [Full Backup])

This folder backup files can be opened in your PC and you can also import these files into the app from [Menu] > [Import Card Data] > [Import Folder Card Data].

 

 

To make your new data in your PC and import it to the app, please refer to the following instruction.

 

<How to Create Card Data on PC (by Google Spread Sheets)>