migration openvpn from utm to xgs

You can migrate to Sophos Connect, which can use the .pro file: 

 Sophos Firewall: Sophos Connect Migration script from UTM SSL VPN 

https://doc.sophos.com/nsg/sophos-firewall/19.5/help/en-us/webhelp/onlinehelp/AdministratorHelp/RemoteAccessVPN/IPsecSSL/SophosConnect/RAVPNSConProvisioningFile/index.html 

Sind die user-Konten lokale Konten auf dem System?

Hallo Lucar,

nein das sind einmal User aus einem AD und einmal aus einem ldap. Allerdings eine erhebliche Anzahl.

Grüße Piddae

Additionally to what LuCar Mentioned, Sophos also has a Migration Desk available to all Partners (and subsequently customers) free of charge who will help plan, execute, and verify migrations of your Sophos UTM to Sophos Firewall as well as XG to XGS hardware migrations.

• The Sophos Migration Desk can be engaged from the Sophos Partner Portal or via UTMtoSFOSMigrations@Sophos.com
• If the Sophos Migration Desk deems the migration too complex, they will recommend Sophos Professional Services.

Thanks a lot Vivek. Ist possible to import a complete openvpn structure with about 130 Useres 30 groups by migration and support desk?

Greetings Piddae

No. That is not possible. 
You have to create new certificates. 
Which is not a problem! 

Check the link above. You can simply do that by using one file for everything and Sophos Connect will generate the new configs for your users.