[GNC] Create New Gnucash File From Old One

[Frank H. Ellenberger]

Am 09.11.22 um 02:51 schrieb Joseph Hesse:
> When I tried to open the exported data file I got the error message "No 
> suitable backend was found"

That usually means you did not open your data file, but e.g. the 
metadata file books/<name>.gcm

https://wiki.gnucash.org/wiki/Configuration_Locations will explain you, 
where you will find which type of files.