You have several options to backup or export your data from Bkper.

Google Spreadsheet  

Extract your data to a Google Sheet, using the Bkper add-on. 

1) Open the add-on.

2) Select your book and query and combination of data to extract

Press fetch (blue button) and Bkper data will be written from the active cell on.
Note: The add-on auto update fetches the data every hour for you, ideal for automated backups. 

CSV files 

Export your data to a CSV file with the content according to a query.

Build your own extraction with the BkperApp library, It gives you the freedom to export your data where you want it, using  Google Apps Script

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