Currently, We just can create EFT payment as TXT file.
We expect have a 'EFT File Extension' as place holder in the Bank Account Card , based on this setup it generate the EFT file extension accordingly, also ensure the 'EFT File Extension' must be filled in before we hit the "Create EFT File".
Needs Votes
Ideas Administrator

Thank you for this suggestion! Currently this is not on our roadmap. We are tracking this idea and if it gathers more votes and comments we will consider it in the future. Best regards, Business Central Team