.adb to .adf convert?

Hello everyone

we got a .adb (database backup) because we used to use Aris because of a takeover of our company.

Now we want to continue using Aris Express, because we no longer want to map new processes, but only want to optimize our existing processes.

Unfortunately, the Express version cannot read our .adb file and requires .adf files.

Is there a way to convert our .adf from the .adb?

#Tue Apr 09 15:24:55 CEST 2019

aris-adb-sub-version=2

backup-finished=Tue Apr 09 15\:24\:55 CEST 2019

schema-name=aris

application-version=7.1.0.490292

backup-started=Tue Apr 09 15\:24\:52 CEST 2019

schema-version=25

thanks in advance!