File used by AutoCAD Civil 3D, a BIM (Building Information Modeling) program used for civil engineering design; saved in a plain text format and stores observed point data; can be imported into a drawing.
FBK files can be created from raw survey files in AutoCAD Civil 3D. The converted data can then be imported into a design or drawing.
Compressed backup of a family tree (.FTW) file created with Family Tree Maker for Windows; may be created as a backup file in case the original family tree file is damaged or deleted; can be restored by selecting "File→Restore From Backup" within Family Tree Maker.
NOTE: Family Tree Maker for Windows uses the ".fbk" file extension, while Family Tree Maker for DOS saves backups as .FBC files.
Backup of a database created with Microsoft Dynamics NAV; contains financial data used for business management and analysis; can be used to restore data if the primary database (.FDB) file becomes corrupted or is deleted.
Microsoft Dynamics NAV was previously called Microsoft Navision.