The format of database files corresponds mainly to data structured in tables, fields and their relationships. We find these formats in all major database programs and applications.
Database format files
| File Extension | Format Type |
| $ER | GroupWise Database |
| ^^^ | Pervasive.SQL Database File |
| 4DB | 4D database Structure file |
| 4DD | 4th Dimension Database Data File |
| 4DIndx | 4D database Data Index file |
| 4DIndy | 4D database Structure Index file |
| 4DL | 4th Dimension Database Log File |
| 4DR – | 4D database Data resource file (in old 4D versions) |
| ABCDDB | Apple Address Book Contact List |
| ABS | Absolute Database File |
| ABX | WordPerfect Address Book |
| AC | Ancestral Quest Collaborative Database File |
| ACCDB | Microsoft Database (Microsoft Office Access 2007 and later) |
| ACCDC | Microsoft Access Signed Package |
| ACCDE | Access Execute Only Database Compiled Microsoft Database (Microsoft Office Access 2007 and later) |
| ACCDR | Access Runtime Application |
| ACCDT | Microsoft Access Database Template |
| ACCDW | Microsoft Access Database Link File |
| ACCFT | Microsoft Access Data Type Template |
| ADB | Alpha Five Database File |
| ADB | Ability Database File |
| ADE | Access Project Extension |
| ADF | ACT! Data File |
| ADN | Access Blank Project Template |
| ADP | Access Project Microsoft Access project (used for accessing databases on a server) |
| ADT | Sybase Advantage Database Server (ADS) |
| ALF | ACT! Lookup File |
| ANB | Analyst’s Notebook Chart |
| APPROJ | ActivePresenter Project |
| APR | Lotus Approach data entry & reports |
| AQ | Ancestral Quest Database File |
| ASK | askSam Database |
| BACPAC | Compressed Microsoft SQL Database |
| BAK | Microsoft SQL Server Database Backup |
| BC3 | FIEBDC-3 Database File |
| BOX | Lotus Notes Post Office mail routing database |
| BTR | Btrieve Database File |
| CAF | Cathy Catalog File |
| CAT | Advanced Disk Catalog Database |
| CDB | Pocket Access Database |
| CDB | Symbian Phonebook Database |
| CDB | CardScan Contacts Database |
| CHCK | Microsoft Exchange Server Database Check File |
| CHML | Krasbit Technologies Encrypted database file for 1 click integration between contact management software and the chameleon(tm) line of imaging workflow solutions |
| CKP | SQL Server Checkpoint File |
| CMA | TM1 Exported Cube File |
| CPD | RoboHelp Cache Project Database |
| CRYPT | WhatsApp Encrypted Database |
| CRYPT1 | WhatsApp Encrypted Database File |
| CRYPT10 | WhatsApp Encrypted Database File |
| CRYPT12 | WhatsApp Encrypted Database File |
| CRYPT14 | WhatsApp Encrypted Database File |
| CRYPT15 | WhatsApp Encrypted Database File |
| CRYPT5 | WhatsApp Encrypted Database File |
| CRYPT6 | WhatsApp Encrypted Database File |
| CRYPT7 | WhatsApp Encrypted Database File |
| CRYPT8 | WhatsApp Encrypted Database File |
| CRYPT9 | WhatsApp Encrypted Database File |
| DAB | OrangeCD Database File |
| DACONNECTIONS | RemObjects Data Abstract Connections File |
| DACPAC | SQL Server Data Tier Application Package |
| DAD | RemObjects Data Abstract Driver File |
| DADIAGRAMS | RemObjects Data Abstract Data Diagrams File |
| DAF | Digital Anchor data file |
| DASCHEMA | RemObjects Data Abstract Schema File |
| DAT | DOS Basic, Intersystems Caché database file |
| DB | Mobile Device Database, Database File |
| DB2 | dBASE II Database |
| DB3 | SQLite Database File |
| DBC | FoxPro Database |
| DBCRYPT | WhatsApp Encrypted Database |
| DBCRYPT12 | WhatsApp Encrypted Database File |
| DBCRYPT8 | WhatsApp Encrypted Database File |
| DBF | Database File db/dbase II,III,IV and V, Clipper, Harbour/xHarbour, Fox/FoxPro, Oracle |
| DB-JOURNAL | SQLite Rollback Journal File |
| DBS | SQLBase Database File |
| DB-SHM | SQLite Database Shared Memory File |
| DBT | Database Text File |
| DBV | Database Variable Field |
| DB-WAL | SQLite Database Write-Ahead Log File |
| DBX | Dropbox Encrypted Database File |
| DCB | Concordance Database File |
| DCT | FoxPro Database Memo |
| DCX | FoxPro Database Index |
| DDL | Data Definition Language File |
| DLIS | DLIS Well Log Data File |
| DP1 | DataPower Database File |
| DQY | Microsoft Excel Query |
| DSK | Simple IDs Database |
| DSN | Database Source Name File |
| DTA | Sage Sterling database file |
| DTSX | DTS Settings File |
| DXL | Domino XML Language File |
| EAP | Enterprise Architect Project |
| ECO | ECCO Database File |
| ECX | ECCO Corrupted Database File |
| EDB | Exchange Information Store Database |
| EDB | Windows Search Index Database |
| EGT | EGT Universal Document, used to compress sql databases to smaller files, may contain original EGT database style |
| EPIM | EssentialPIM Database File |
| ERX | Entity Relationship Data Model File |
| ESS | EGT SmartSense is a database of files and its compression style Specific to EGT SmartSense |
| EXB | Evernote Database File |
| FCD | First Choice Database |
| FDB | Firebird Database File |
| FDB | Microsoft Dynamics NAV Database File |
| FDB | Legacy Family Tree Database |
| FDB | Firebird Databases, Navision database file |
| FIC | WinDev Hyper File Database |
| FLEXOLIBRARY | Final Cut Pro Library Database |
| FM | FileMaker Database |
| FM5 | FileMaker 5 Database |
| FMP | FileMaker Pro Database |
| FMP12 | FileMaker Pro 12 Database |
| FMPSL | FileMaker Pro 12 Snapshot Link |
| FOL | PFS First Choice Database File |
| FP | FileMaker Pro |
| FP3 | FileMaker Pro |
| FP5 | FileMaker Pro |
| FP7 | FileMaker Pro |
| FP3 | FileMaker Pro 3 Database |
| FP4 | FileMaker Pro 4 Database |
| FP5 | FileMaker Pro 5 Database |
| FP7 | FileMaker Pro 7+ Database |
| FPT | FileMaker Pro Database Memo File |
| FRM | MySQL Database Format File, MySQL table definition |
| FTB | Family Tree Builder Genealogy Database File |
| GDB | InterBase Database File, GPS Database File, Borland InterBase Databases |
| GRDB | Gramps Database File |
| GTABLE | Google Drive Fusion Table |
| GWI | GroupWise Database Shortcut File |
| HDB | HansaWorld Database File |
| HIS | FindinSite Database Definition File |
| IB | InterBase Database |
| IBD | MySQL InnoDB Table |
| ICDB | Icaros Thumbnail Database |
| IDB | IDA Database File |
| IHX | IN-HEH Timeline Database |
| IPJ | ProFicient SPC Manufacturing Intelligence Project File |
| ITDB | iTunes Database File |
| ITW | InTouch With Database |
| JET | JET Database File |
| JTX | ESE Transaction Log |
| KDB | Keypass Database File |
| KEXI | Kexi Database, – Kexi database file (SQLite-based) |
| KEXIC | Kexi Database Connection File, shortcut to a database connection for a Kexi databases on a server |
| KEXIS | Kexi Database Shortcut File, shortcut to a Kexi database |
| LDB | Temporary database file, only existing when database is open |
| LGC | SimpleK Database File |
| LIRS | Layered Intager Storage Stores intageres with characters such as semicolons to create lists of data |
| LUMINAR | Luminar 4 Catalog Database |
| LWX | Lightwright Database File |
| MAF | Microsoft Access Form |
| MAQ | Microsoft Access Query |
| MAR | Microsoft Access Report |
| MARSHAL | Marshal Data Migration Model File |
| MAS | Access Stored Procedures |
| MAV | Access View File |
| MAW | Access Data Access Page |
| MBTILES | Mapbox Tileset |
| MDA | Add-in file for Microsoft Access |
| MDB | Microsoft Access Database |
| MDBHTML | Microsoft Access Database HTML File |
| MDE | Compiled Microsoft Database (Access) |
| MDF | SQL Server Database File |
| MDN | Blank Access Database Template |
| MDT | GeoMedia Access Database Template |
| MFD | Music Finder Database |
| MPD | Microsoft Project Database |
| MRG | MySQL Merge File |
| MUD | Textease Multi User Database |
| MUSICDB | Apple Music Library |
| MUSICLIBRARY | Apple Music Library |
| MWB | MySQL Workbench Document |
| MYD | MySQL Database Data File |
| MYD | MySQL MyISAM table data |
| MYI | MySQL MyISAM table index |
| NCF | Lotus Notes configuration file |
| NDF | SQL Server Secondary Database File |
| NNT | Eudora Address Book File |
| NRMLIB | Neat Cabinet File |
| NS2 | Lotus Notes 2 Database |
| NS3 | Lotus Notes 3 Database |
| NS4 | Lotus Notes 4 Database |
| NSF | Lotus Notes Database |
| NTF | Lotus Notes database design template |
| NV | NewViews Database File |
| NV2 | NewViews 2 Database File QW Page NewViews object oriented accounting database |
| NWDB | Neat Database File |
| NYF | myBase Database File |
| ODB | OpenDocument Database, ABAQUS Database, LibreOffice Base or OpenOffice Base database |
| ODL | OneDrive Event Log |
| OQY | Microsoft Excel OLAP Query |
| ORA | Oracle Database Configuration File, Oracle tablespace files sometimes get this extension (also used for configuration files) |
| ORX | RadiantOne VDS Database Schema |
| OWC | OutWit Catch Database |
| P96 | Win96 Database File |
| P97 | Win97 Database File |
| PAN | Panorama Database File |
| PCONTACT | WinIM Contact file |
| PDB | Program Database |
| PDB | Palm Desktop Database File, Palm OS Database |
| PDI | Portable Database Image |
| PDM | PowerDesigner Database File |
| PDX | Corel Paradox database management |
| PNZ | Panorama Database Set |
| PQA | Palm Query Application |
| PRC | Palm OS resource database |
| PVOC | ProVoc Database File |
| QRY | Query File |
| QVD | QlikView Data File |
| R2D | Borland Reflex Database |
| RBF | Redatam Binary File |
| RCTD | RabbitCT Dataset |
| REALM | Realm Database |
| REC | GNU recutils database |
| REL | Sage Retrieve 4GL data file |
| RIN | Sage Retrieve 4GL index file |
| RMGC | RootsMagic Data File |
| ROD | RIB office Database File |
| ROD | Ancestry Genealogical Database File |
| RODX | Ancestry Genealogical Database File |
| RPD | RIB Project Database File |
| RSD | RealSQLDatabase File |
| SAS7BDAT | SAS Dataset File |
| SBF | Superbase Database |
| SCX | FoxPro Form |
| SDA | StarMoney User Database Archive |
| SDB | ServerBoss Database File |
| SDB | OpenOffice Base Database File |
| SDB | MonKey Office SQLite Database File |
| SDB | SparkleDB Database File |
| SDB – | StarOffice’s StarBase |
| SDC | Paragon Dictionary Database File |
| SDF | SQL Server Compact Database File |
| SDF – | SQL Compact Database file |
| SDX | StarMoney User Database File |
| SDY | StarMoney User Database File |
| SIS | Sisma Database File |
| SPQ | SPSS Database Query File |
| SQL | Structured Query Language Data File, bundled SQL queries |
| SQLITE | SQLite Database |
| SQLITE3 | SQLite 3 Database |
| SQLITEDB | SQLite Database |
| TE | Textease CT Database File |
| TEACHER | SMART Response Teacher Database File |
| TEMX | Cemetery Registry Database File |
| TMD | MySQL Temporary Database File |
| TPS | Clarion TopSpeed Data File |
| TRASH_DATABASE | Files by Google Trash Database |
| TRC | SQL Server Trace File |
| TRC | Oracle Trace File |
| TRM | Oracle Trace Map File |
| TSD | Tamino Schema |
| TVDB | Apple TV Database |
| TVDB | TreeView Database |
| UDB | Dynamics AX User Database File |
| UDL | Microsoft Universal Data Link File |
| USR | FileMaker Pro Database File |
| V12 | All The Right Type Database File |
| VIS | Visual Importer Script |
| VPD | VoxPro Database File |
| VVV | Virtual Volumes View Catalog |
| waData | Wakanda (software) database Data file |
| waIndx | Wakanda (software) database Index file |
| waJournal | Wakanda (software) database Journal file |
| waModel | Wakanda (software) database Model file |
| WDB | Microsoft Works Database |
| WMDB | Windows Media Database File, Windows Media Database file – The CurrentDatabase_360wmdb file can contain file name, file properties, music, video, photo and playlist information |
| WRK | SQL Server Log Shipping File |
| XDB | PowerDesigner Database Definition File |
| XLD | Microsoft Excel Database |
| XMLFF | XML Flat File |