qbmd to iif conversion looks to be less of file export and more like attempt to recover data from QuickBooks backup files. The only software that can be used to recover .qbmd files is QuickBooks itself and it is extremely unlikely any other tool can you help you out with this. If you struggle with backup recovery using the software, it might be best to reach out to QuickBooks support for further assisitance.
Updated: August 23, 2023