Files that contain the .nbf file extension are most commonly associated with the NTI Backup Now backup software program. When the NTI Backup Now application is used to create backups of files and folders on a user's system, the resulting file archive is saved with the .nbf file extension.
In most cases, a user will save more than one backup using the NTI Backup Now software. The multiple files are then named in sequence with each file containing the .nbf file suffix, such as backup_001.nbf, backup_002.nbf and backup_003.nbf.
The NVIDIA graphic card software also uses the .nbf file extension. These NBF files contain scene graphic files processed by the graphics card software.
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If you have additional information about the NBF file format or software that uses files with the NBF suffix, please do get in touch - we would love hearing from you.