The X
按字母分类：
extension name file type Classification
D3MD DART Metadata File data file
DA2 DeepAnalysis Save File data file
DAF Digital Anchor File data file
DAL DVD-lab Project File data file
DAM DeltaMaster Analysis Model data file
DAP Diet Analysis Profile data file
DAS DeltaMaster Analysis Session data file
DAT Data File data file
DAT Piriform Key File data file
DAT Porteus Save Container File data file
DAT Nonimmigrant Visa Application Data File data file
DATA Analysis Studio Offline Data File data file
DB QQ Account Database File data file
DB Skype Chat History File data file
DB- Norton Nprotect Database File data file
DB.JOU Patran Journal File data file
DBD DemoShield Project data file
DBF FoxPro Table data file
DBGSYM Debug Symbols File data file
DCF Document Computation Format data file
DCL DumpSec Report File data file
DCM DiskCatalogMaker Catalog File data file
DCMD DiskCatalogMaker Thumbnail-Enabled Catalog data file
DCMF DiskCatalogMaker Catalog data file
DCPF Disc Copier Project File data file
DCPR Adobe DNG Camera Profile Recipe File data file
DCT AutoCAD Dictionary File data file
DDB Digidesign Database data file
DDC DivX Descriptor File data file
DDCX DivX Descriptor 2 File data file
DDE Lingvo Dictionary Error Log File data file
DDT Diagram Designer Template data file
DEF IOBit Malware Fighter Definitions File data file
DEOS Driver Easy Offline Scan File data file
DEPROJ Disketch Project File data file
DES QuickBooks Forms Template data file
DET Sage ACT! 5 Email Message data file
DEVELVE Develve Data File data file
DEVICEINFO Device Record data file
DEX Disketch Project File data file
DEX DEXIS Digital X-ray File data file
DFM Midas ViewPoint Display Form data file
DFPROJ DVD Flick Project data file
DGS 3D Screen Creator Scene File data file
DHCD DHCD Computing Application Data File data file
DHT GAUSS Data Set Header File data file
DIA Do It Again Task File data file
DICT Dictionary File data file
DIF Data Interchange Format data file
DIG Digilink Data File data file