Sys system file, dmp Oracle binary backup file bat DOS batch file, executable file TMP Windows temporary file JS JavaScript source file NLS national language localization support file (such as Uniscape) log file PRS Harvard graphics for Windows presentation file MSA ghost file MSG Microsoft mail message MSI Windows installer package MSN Microsoft network document; Descending task file POP Visual dBASE file extension corresponds to file Ace compressed file format CPL control panel application ACT Microsoft office assistant file CPP C/ C++ program source file ACM audio compression management driver CPT Macintosh Compact Pro file library ADF system management configuration CRD Windows card AIF sound format file CRF cross-assembly file, The program list AIO generated by MASM compiler is converted from APL file to format file CRT Internet security certificate ANI Windows system animation cursor CSV command segmented data APL APL workspace format file CTL control file APP application file CUR mouse cursor resource file ARC compressed file CUT Paint Sho P Pro image file ARJ compressed file DAT data text. The software contains a batch of data art image files dbdbbase or FoxBASE configuration files to be processed or generated in the program, including running environment parameters ASC ASC text file DBC database ASM MASM assembly language source program file DBF FoxBASE or FoxPro database file AU sound file DBS data file AVI? 0? 2Windows video file DBT remarks file AWD fax browsing file DCT dictionary file AWP fax key browser DCX fax browsing document or database index AWS fax signature browser DDI compressed file bad error file DEF pattern definition file BAK backup file DER Internet security certificate BAS BASIC language source program. Sequence file DEV device driver file BAT DOS batch file DGS device diagnosis file BCM Works communication file DIB paint shop Pro image file BDB Works database file DIC dictionary file BFC briefcase DIF change backup settings DIRectory file BIN binary file dir directory file BMP window. Bitmap file DLL Windows dynamic link library file C C language source program file DMP Oracle binary format backup file CAB Windows installer DOB user text file CAL Windows calendar file DOC document file CDA CD audio track file DOS file CDR Paint Shop Pro image file. Point document file CDX composite index file DOX user text file CFG configuration file DRV device driver file contains system equipment and environment information CGM Paint Shop Pro image file DRW Paint Shop Pro image file CHK file DSN ODBC database file CLP clipboard file DUN command file DWG A is exported through dial-up network. UtoCAD graphic file CNF configuration file, which contains information about equipment configuration DXF paint shop Pro image file CNT help content EML Internet e-mail COB COBOL language source program file EPS.