.FBK File Extension

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.

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.