List of Backup file extensions

There are many different backup file extensions and backup file types used with computers, and you'll find an entire list of backup file extensions and types on our computer files and file extensions page. It is impossible to remember all file extensions and their associated software programs.

Below is the list of backup file extensions, broken into categories by sort of files along with the developer and available 100% free online backup file tools and apps.

Extension File Type Free Apps
.$$$ Temporary File Free $$$ Apps
.$DB dBASE Temporary File Free $DB Apps
.__A File Splitter & Joiner Encrypted File Free __A Apps
.__B File Splitter & Joiner Encrypted Archive File Free __B Apps
.~CW Circuit Wizard Backup File Free ~CW Apps
.001 Norton Ghost Disk Backup Free 001 Apps
.002 Split Archive Part 2 File Free 002 Apps
.003 Split Archive Part 3 File Free 003 Apps
.113 Iomega Backup File Free 113 Apps
.73B TI-73 Backup File Free 73B Apps
.AB Android ADB Backup File Free AB Apps
.ABA Palm Address Book Archive Free ABA Apps
.ABBU Address Book Backup Free ABBU Apps
.ABF Analysis Services Backup File Free ABF Apps
.ABK Automatic Backup File Free ABK Apps
.ABU Asus App Backup File Free ABU Apps
.ABU1 ASUS Backup File Free ABU1 Apps
.ACP Alfresco Content Package Free ACP Apps
.ACR Acer eRecovery Management Backup File Free ACR Apps
.ADI AOMEI Backupper Disk Backup File Free ADI Apps
.ADI Activ[email protected] Disk Image Backup File Free ADI Apps
.AEA AdWords Editor Archive Free AEA Apps
.AFI AOMEI Backupper File Backup File Free AFI Apps
.ARC Norton Backup Archive Free ARC Apps
.ARC Symbian OS Backup File Free ARC Apps
.AS4 askSam Backup File Free AS4 Apps
.ASD Word AutoSave File Free ASD Apps
.ASHBAK Ashampoo Backup Archive Free ASHBAK Apps
.ASV Finale Auto-save File Free ASV Apps
.ASVX Finale Auto-save File Free ASVX Apps
.ATE Office Accounting Compressed Backup File Free ATE Apps
.ATI Office Accounting Updated Company File Free ATI Apps
.BA6 TaxAct 2016 Tax Return Backup File Free BA6 Apps
.BA7 TaxAct 2017 Tax Return Backup File Free BA7 Apps
.BA8 TaxAct 2018 Tax Return Backup File Free BA8 Apps
.BA9 TaxAct 2019 Tax Return Backup File Free BA9 Apps
.BAC Backup File Free BAC Apps
.BACKUP Android Backup File Free BACKUP Apps
.BACKUPDB Time Machine Backup Folder Free BACKUPDB Apps
.BAK~ AbiWord Auto-Saved Document Free BAK~ Apps
.BAK Bookmarks Backup File Free BAK Apps
.BAK ACT! Backup File Free BAK Apps
.BAK Finale Backup File Free BAK Apps
.BAK MobileTrans Backup File Free BAK Apps
.BAK2 Backup File Free BAK2 Apps
.BAK3 Backup File Free BAK3 Apps
.BAKX Finale Backup File Free BAKX Apps
.BBB BlackBerry Mobile Phone Backup File Free BBB Apps
.BBZ BerryBuzz Backup File Free BBZ Apps
.BCK VMX Backup File Free BCK Apps
.BCKP Ad-Aware Quarantined File Free BCKP Apps
.BCM Microsoft Works Communications Script Backup Free BCM Apps
.BDB Microsoft Works Database Backup File Free BDB Apps
.BFF Backup File Format Free BFF Apps
.BIF Get Backup Project File Free BIF Apps
.BIFX Get Backup Project Free BIFX Apps
.BK1 Autodesk Backup File Free BK1 Apps
.BK1 ERwin Backup File Free BK1 Apps
.BKC Backup4all Backup Catalog Free BKC Apps
.BKF Windows Backup Utility File Free BKF Apps
.BKP Backup File Free BKP Apps
.BKP Zapback Backup File Free BKP Apps
.BKUP Backup File Free BKUP Apps
.BKZ FileFort Backup File Free BKZ Apps
.BLEND1 Blender Document Backup File Free BLEND1 Apps
.BLEND2 Blender Document Backup 2 File Free BLEND2 Apps
.BM3 Sony Ericsson Backup File Free BM3 Apps
.BMK BillMinder Backup File Free BMK Apps
.BOOKEXPORT BookSmart Backup Book File Free BOOKEXPORT Apps
.BPA StorageSync Backup Archive Free BPA Apps
.BPB PowerDesigner Business Process Backup File Free BPB Apps
.BPM PowerDesigner Business Process Model Free BPM Apps
.BPN ArchiCAD Project Backup File Free BPN Apps
.BPS Works Document Backup Free BPS Apps
.BUP Backup File Free BUP Apps
.BUP DVD IFO Backup File Free BUP Apps
.CAA CleanApp Archive Free CAA Apps
.CBK Backup Configuration File Free CBK Apps
.CBS Comodo Backup Script Free CBS Apps
.CBU Comodo Backup File Free CBU Apps
.CENON~ Cenon Backup File Free CENON~ Apps
.CK9 Cook'n Cookbook Backup File Free CK9 Apps
.CMF Connected Backup File Free CMF Apps
.CRDS Windows CardSpace Backup File Free CRDS Apps
.CSD Steam Game Data Backup File Free CSD Apps
.CSM Steam Game Backup File Free CSM Apps
.DA0 Windows Registry Backup File Free DA0 Apps
.DASH Dashlane Profile Free DASH Apps
.DBA Palm Datebook Backup File Free DBA Apps
.DBK Sony Ericsson Mobile Phone Backup File Free DBK Apps
.DBK dBASE Database Backup Free DBK Apps
.DIM [email protected] Raw Disk Image Backup File Free DIM Apps
.DIY My Drivers Backup Setup File Free DIY Apps
.DNA CA Backup and Migration Backup File Free DNA Apps
.DOV Temp File Free DOV Apps
.DPB DataPilot Backup File Free DPB Apps
.DSB Dell DataSafe Backup File Free DSB Apps
.DSS DiskStation Backup Configuration File Free DSS Apps
.FBC Family Tree Maker for DOS Backup File Free FBC Apps
.FBF Free Backup Fix Backup File Free FBF Apps
.FBK Microsoft Dynamics NAV Backup File Free FBK Apps
.FBK Family Tree Maker for Windows Backup File Free FBK Apps
.FBU FEBE Firefox Backup File Free FBU Apps
.FBW HP Recovery Manager Backup File Free FBW Apps
.FH Symantec Backup Exec File Free FH Apps
.FHF Free Hide Folder Backup File Free FHF Apps
.FLKA Folder Lock Portable Locker File Free FLKA Apps
.FLKB Folder Lock Basic Locker File Free FLKB Apps
.FPSX Nokia Firmware Format File Free FPSX Apps
.FTMB Family Tree Maker Backup File Free FTMB Apps
.FUL Microsoft Backup File List Free FUL Apps
.FWBACKUP Freeway Backup Free FWBACKUP Apps
.FZA Form•Z Autosave File Free FZA Apps
.FZB Form•Z Project Backup File Free FZB Apps
.GB1 Game Maker Backup File Free GB1 Apps
.GB2 Game Maker Backup File Free GB2 Apps
.GBP Genie Timeline Backup Index File Free GBP Apps
.GHO Norton Ghost Backup File Free GHO Apps
.GHS Norton Ghost Image Segment Free GHS Apps
.GS-BCK Genius Scan Backup File Free GS-BCK Apps
.IBK IncrediMail Account Backup File Free IBK Apps
.ICBU Calendar Backup File Free ICBU Apps
.ICF Zoom Router Configuration File Free ICF Apps
.INPROGRESS Time Machine Backup Progress File Free INPROGRESS Apps
.IPD BlackBerry Backup File Free IPD Apps
.IV2I Norton Ghost Incremental Virtual Volume Image Free IV2I Apps
.J01 Akeeba Multi-part Backup Archive Free J01 Apps
.JBK Juno Backup File Free JBK Apps
.JDC JDownloader Links File Free JDC Apps
.JPA Akeeba Backup Archive Free JPA Apps
.JPS Akeeba Backup Archive Free JPS Apps
.KB2 Kleo Backup File Free KB2 Apps
.LBF LG Backup File Free LBF Apps
.LCB Living Cookbook Backup File Free LCB Apps
.LDABAK Legistant Encrypted Backup File Free LDABAK Apps
.LLX LabVIEW VI Library Backup File Free LLX Apps
.MBF Microsoft Money Backup File Free MBF Apps
.MBK dBASE IV Multiple Index Backup File Free MBK Apps
.MBW MBRWizard Archive Free MBW Apps
.MDBACKUP iPhone Data Backup File Free MDBACKUP Apps
.MDDATA iPhone Backup File Free MDDATA Apps
.MDINFO iPhone Backup Information File Free MDINFO Apps
.MEM FoxPro Variable File Free MEM Apps
.MIG Windows Migration Backup File Free MIG Apps
.MPB MyPhoneExplorer Backup File Free MPB Apps
.MSIM mSecure Password Manager Backup File Free MSIM Apps
.MV_ Movie Edit Pro Movie Backup File Free MV_ Apps
.MYNOTESBACKUP Keep My Notes Backup Free MYNOTESBACKUP Apps
.NB7 NovaBACKUP Output File Free NB7 Apps
.NBA Nero BackItUp Archive Free NBA Apps
.NBAK Neat Backup File Free NBAK Apps
.NBD Data Backup Data File Free NBD Apps
.NBD NovaBACKUP File Free NBD Apps
.NBF Backup Now Archive Free NBF Apps
.NBF Nokia Backup File Free NBF Apps
.NBI Nero BackItUp Information File Free NBI Apps
.NBK NovaBACKUP Job File Free NBK Apps
.NBK Data Backup Job File Free NBK Apps
.NBS NTI Backup Set Free NBS Apps
.NBU Nokia Phone Backup File Free NBU Apps
.NCO Nero BackItUp File Free NCO Apps
.NDA Nero Backup File Free NDA Apps
.NFB Nokia Phone Backup File Free NFB Apps
.NFC Nokia Phone Backup Copy File Free NFC Apps
.NOY NOY Backup File Free NOY Apps
.NPF NTI Partition File Free NPF Apps
.NPS NTI Partition Set Free NPS Apps
.NRBAK NeatReceipts Backup File Free NRBAK Apps
.NRS NovaBACKUP Restore Script Free NRS Apps
.NWBAK NeatWorks Backup File Free NWBAK Apps
.OBK Backup File Free OBK Apps
.OEB Outlook Express Backup Wizard File Free OEB Apps
.OLD Backup File Free OLD Apps
.ONEPKG Microsoft OneNote Package File Free ONEPKG Apps
.ORI Original File Free ORI Apps
.ORIG Original File Free ORIG Apps
.OYX Approach Alternate Database Index Free OYX Apps
.PAQ Hewlett-Packard Software Restore File Free PAQ Apps
.PBA PowerBackup Archive Free PBA Apps
.PBB AT&T Phonebook File Free PBB Apps
.PBD EaseUS Todo Backup File Free PBD Apps
.PBF PowerBackup Data File Free PBF Apps
.PBF Paragon Backup File Free PBF Apps
.PBJ PowerBackup Job File Free PBJ Apps
.PBX5SCRIPT Personal Backup Script Free PBX5SCRIPT Apps
.PBXSCRIPT Personal Backup Script Free PBXSCRIPT Apps
.PDB PowerDesigner Database Backup File Free PDB Apps
.PFI Paragon Backup Index File Free PFI Apps
.PQB Pleco Chinese Dictionary Backup File Free PQB Apps
.PQB-BACKUP Pleco Chinese Dictionary Backup File Free PQB-BACKUP Apps
.PRV Free Folder Hider Backup File Free PRV Apps
.PSA Plesk Backup File Free PSA Apps
.PTB Sage 50 Backup File Free PTB Apps
.PVC Parallels Desktop Copied Configuration File Free PVC Apps
.PVHD Paragon Virtual Hard Drive Free PVHD Apps
.QBA.TLG QBA Transaction Log File Free QBA.TLG Apps
.QBB QuickBooks Backup File Free QBB Apps
.QBK QuickTax Backup File Free QBK Apps
.QBM QuickBooks Portable Company File Free QBM Apps
.QBMB QuickBooks Backup File Free QBMB Apps
.QBMD QuickBooks Backup File Free QBMD Apps
.QBX QuickBooks Accountant Transfer File Free QBX Apps
.QIC Windows Backup File Free QIC Apps
.QSF Qualtrics Survey File Free QSF Apps
.QUALSOFTCODE J&ASoft Code Archive File Free QUALSOFTCODE Apps
.QUICKEN2015BACKUP Quicken 2015 Backup File Free QUICKEN2015BACKUP Apps
.QUICKEN2016BACKUP Quicken 2016 Backup File Free QUICKEN2016BACKUP Apps
.QUICKEN2017BACKUP Quicken 2017 Backup File Free QUICKEN2017BACKUP Apps
.QUICKENBACKUP Quicken Essentials for Mac Backup File Free QUICKENBACKUP Apps
.QV~ ViewletBuilder Project Backup File Free QV~ Apps
.RBC Retrospect Backup Catalog File Free RBC Apps
.RBF Windows Installer Rollback File Free RBF Apps
.RBF Stellar Insta Backup Image Free RBF Apps
.RBF Retrospect Backup File Free RBF Apps
.RBK Windows 95 Registry Backup File Free RBK Apps
.RBS Windows Installer Rollback Script Free RBS Apps
.RDB Retrospect Backup Set Free RDB Apps
.RGMB RootsMagic Backup File Free RGMB Apps
.RMBAK Registry Mechanic Backup File Free RMBAK Apps
.RRR Registry Mechanic Backup File Free RRR Apps
.SAFENOTEBACKUP Safe Note Backup File Free SAFENOTEBACKUP Apps
.SAV Parallels Desktop Saved State Image File Free SAV Apps
.SBB Office Accounting Company Backup File Free SBB Apps
.SBS Secure Backup System File Free SBS Apps
.SBU Samsung Backup File Free SBU Apps
.SDC Stardock Central Download Archive Free SDC Apps
.SIM Steam Game Backup Information File Free SIM Apps
.SIS Steam Game Backup Information File Free SIS Apps
.SKB SketchUp Backup Document Free SKB Apps
.SME Samsung Mobile Backup File Free SME Apps
.SN1 Drive Snapshot First Differential Backup Free SN1 Apps
.SN2 Drive Snapshot Second Differential Backup Free SN2 Apps
.SNA Drive Snapshot Primary Backup File Free SNA Apps
.SNS Save-N-Sync Project File Free SNS Apps
.SPF ShadowProtect Full Backup File Free SPF Apps
.SPG TCP Optimizer Backup File Free SPG Apps
.SPI ShadowProtect Incremental Backup File Free SPI Apps
.SPS SyncBack Settings File Free SPS Apps
.SQB SQL Backup SQL Server Backup File Free SQB Apps
.SRR ReScene Metadata File Free SRR Apps
.STG ActiveSync Backup File Free STG Apps
.SV$ AutoCAD Automated Backup File Free SV$ Apps
.SV2I Symantec System Index File Free SV2I Apps
.TBK FoxPro Memo Backup Free TBK Apps
.TDB eBay Turbo Lister Backup File Free TDB Apps
.TIBKP Titanium Backup File Free TIBKP Apps
.TIG TI Connect Backup File Free TIG Apps
.TIS True Image Script Free TIS Apps
.TLG QuickBooks Transaction Log File Free TLG Apps
.TMP Finale Temporary File Free TMP Apps
.TMR Free Countdown Timer Backup File Free TMR Apps
.TRN SQL Server Transaction Log Backup File Free TRN Apps
.TTBK Canadian TurboTax 2010 Backup File Free TTBK Apps
.UCI UFS Explorer Backup File Free UCI Apps
.V2I Norton Ghost Virtual Volume Image Free V2I Apps
.VBK Veeam Backup File Free VBK Apps
.VBM Veeam Backup Metadata File Free VBM Apps
.VBOX-PREV Oracle VM VirtualBox Settings Backup File Free VBOX-PREV Apps
.VPCBACKUP Windows Virtual PC Backup File Free VPCBACKUP Apps
.VRB Veeam Incremental Backup File Free VRB Apps
.W01 Samsung Recovery File Free W01 Apps
.WALLETX Enpass Data File Free WALLETX Apps
.WBB WinBackup Archive Free WBB Apps
.WBCAT Windows Backup Catalog File Free WBCAT Apps
.WBK Word Document Backup Free WBK Apps
.WIN FoxPro Window Settings Free WIN Apps
.WIN Windows Backup File Free WIN Apps
.WJF WinZip Job File Free WJF Apps
.WPB Windows Phone Device Manager Backup File Free WPB Apps
.WSPAK WebsitePanel Backup File Free WSPAK Apps
.WX Wanam Xposed Backup File Free WX Apps
.XBK XenServer Backup File Free XBK Apps
.XLK Excel Backup File Free XLK Apps
.YRCBCK YRC Backup Archive Free YRCBCK Apps
.ZBFX zebNet Backup File Extended Free ZBFX Apps
Extension File Type Free Apps