There is only one file type that uses the .NBA extension:
Nero BackItUp Archive
Archive created by BackItUp (formerly BackItUp & Burn), a file compression and backup utility; contains a collection of compressed files in a proprietary format; typically stored to a CD, DVD, or other backup media.
NOTE: Nero BackItUp is included with the Nero Multimedia Suite.
|Nero BackItUp 2019||Paid|
Updated: January 11, 2016