| Extension |
File
Description |
Common? |
.$er |
GroupWise Database |
No |
.123 |
Lotus 1-2-3 Spreadsheet |
Yes |
.1pe |
TurboTax Form File |
No |
.1ph |
TurboTax File |
No |
.3dt |
3D Topicscape File |
No |
.a3l |
Authorware 3 Library |
No |
.a3m |
Authorware 3 Macintosh File |
No |
.a3w |
Authorware 3 Windows File |
No |
.a4l |
Authorware 4 Library |
No |
.a4m |
Authorware 4 Windows File |
No |
.a4w |
Authorware 5 Library |
No |
.a5l |
Authorware 5 Windows File |
No |
.a5w |
Authorware 6.5 File |
No |
.a65 |
DNA Sequence File |
No |
.ab |
DNA Electropherogram File |
No |
.ab1 |
PhotoImpact 3 Album File |
No |
.ab3 |
AudioVisual Book Data File |
No |
.abcd |
DNA Chromatogram File |
No |
.abi |
Access Project Extension |
No |
.ade |
Access Project |
No |
.adp |
Approach Index File |
No |
.adx |
Ancestry.com Family Tree Database |
No |
.aft |
askSam Database |
No |
.ask |
Solid Edge Assembly Document |
No |
.asm |
Activeworlds Object Group File |
No |
.awg |
Belarc Advisor Report File |
No |
.bci |
Business Contact Manager File |
No |
.bcm |
Binary Data File |
No |
.bdf |
Generic Binary File |
No |
.bin |
FrameMaker Book File |
No |
.bk |
BookBuddi eBook File |
No |
.bkk |
TestGen Testbank File |
No |
.bok |
E-mail Mailbox |
No |
.box |
EAGLE Circuit Board File |
No |
.brd |
BizTalk Map File |
No |
.btm |
Advanced Disk Catalog Database |
No |
.cat |
CyberGauge Data File |
No |
.cbg |
CyberGauge Data File |
No |
.ccr |
Common Data Format |
No |
.cdf |
Quicken Online Data File |
No |
.chg |
Ethnograph Data |
No |
.chn |
CircuitMaker File |
No |
.ckt |
Windows Clipboard File |
No |
.clp |
Windows Cardfile |
No |
.crd |
PNA Code Calset File |
No |
.csa |
Comma Separated Values File |
Yes |
.csv |
WhereIsIt Catalog |
No |
.ctf |
Messenger Contact List |
No |
.ctt |
ClarisWorks Document |
No |
.cwk |
Claris Works Template |
No |
.cws |
Clustify Output File |
No |
.cyo |
Clustify Summary File |
No |
.cys |
Digital Anchor File |
No |
.daf |
DeltaMaster Analysis Model |
No |
.dam |
DeltaMaster Analysis Session |
No |
.das |
Data File |
Yes |
.dat |
Database File |
Yes |
.db |
dBASE II Database |
No |
.db2 |
FoxPro Database |
No |
.dbc |
Database File |
No |
.dbf |
FoxPro Table |
No |
.dbf |
Visual FoxPro Table |
No |
.dbx |
DumpSec Report File |
No |
.dcl |
DivX Descriptor File |
No |
.ddc |
DivX Descriptor 2 File |
No |
.ddcx |
Digital Elevation Model |
Yes |
.dem |
QuickBooks Forms Template |
No |
.des |
DEXIS Digital X-ray File |
No |
.dex |
Excel Spreadsheet |
No |
.dex |
Solid Edge Draft Document |
No |
.dft |
FlashCAD Drawing Database |
No |
.dgb |
Data Interchange Format |
No |
.dif |
Summation Batch Load File |
No |
.dii |
Digital Line Graph |
No |
.dlg |
Dynamic Link Library |
Yes |
.dll |
Toad Data Modeler 2 File |
No |
.dm2 |
Derive Demo |
No |
.dmo |
DataPower Database File |
No |
.dp1 |
Simple IDs Database |
No |
.dsk |
ArcInfo Coverage Export File |
No |
.e00 |
Enterprise Architect Project |
No |
.eap |
Portage eBuild Script |
No |
.ebuild |
Exchange Information Store Database |
No |
.edb |
Embroidery Design File |
No |
.emb |
Everest Embedded Bank File |
No |
.emb |
ChessBase Tablebase |
No |
.emd |
Mail Message Attachment |
No |
.emlxpart |
TalaPhoto Project |
No |
.epp |
ACD/Labs Dataset |
No |
.esp |
EasySpreadsheet Spreadsheet |
No |
.ess |
Echoview File |
No |
.ev |
Envoy File |
No |
.evy |
Export File |
No |
.exp |
Aurora Expert Trace File |
No |
.exp |
FASTA Formatted Sequence File |
No |
.fa |
FASTA Sequence File |
No |
.fasta |
First Choice Database |
No |
.fcd |
First Choice Spreadsheet |
No |
.fcs |
Portfolio Catalog |
No |
