List of file extensions related to AutoCAD-based products.
The following is a list of the most common file extensions or types that are created while using the product, or that a user can create or customize to extend the product.
- DIM – Exported Dimension Style file (Express Tools – DIMEX/DIMIM commands)
- LAS – Exported Layer State file (LAYERSTATE command)
- LIN – Linetype file (LINETYPE command)
- MLN – Multiline Style file (MLINE command)
- PAT – Hatch Pattern file (HATCH command)
CAD Standards Files
- ACTM – Legacy Action Macro file; created with AutoCAD 2024 and earlier releases
- ACTMX – Action Macro file (ACTRECORD command)
- ARX – ObjectARX file
- ATC – Tool Palette Catalog file
- BMP – Bitmap file used with Customization files
- CUI – Customization file (CUI command)
- CUIx – Customization file (CUI command)
- CRX – Console Runtime Extension file; similar to an ARX file except no user interface
- DBX – ObjectDBX file
- DCE – Dialog Error Log file
- DCL – Dialog Control Language file
- DLL – Menu Resource Library or .NET Assembly
- DVB – VBA Project file (VBAIDE command)
- FAS – Fast-load AutoLISP file
- HTM/HTML – Hypertext Markup Language file; used to implement the user interface for JS applications
- JS – JavaScript Source file
- LSP – AutoLISP Source file
- MNL – Menu LISP files
- MNS – Legacy Menu Source file
- MNU– Legacy Menu Template file
- PGP – Program Parameters
- RX – ObjectARX loader file
- SCR – Script file (SCRIPT command)
- SHP – Source Shape file (SHAPE command)
- SLB – Slide Library file
- SLD – Slide file (MSLIDE command)
- VLX – Compiled AutoLISP project file (VLIDE command)
- XPG – Exported palette group file (CUSTOMIZE command)
- XTP – Export tool palette file (CUSTOMIZE command)
Customization Files
- DST – Drawing Set or Sheet Set file (SHEETSET command)
- DWF – Drawing Web file
- DWFx – Drawing Web file
- DWG – Drawing or Block file
- DWS – Drawing Standards file
- DWT – Drawing Template file
- DXB – Drawing Interchange Binary file
- DXF – Drawing Interchange file, ASCII or binary
- SV$ – Autosave drawing file
Drawing Files
- ACB – Autodesk Color Book file (COLOR command)
- ADT – AutoCAD Audit Log file (AUDIT command)
- ARG – Profile file (OPTIONS command)
- AWS – Fixed profile file
- BCL – Drawing Batch file (TrueConvert application)
- BLK – Attribute Extraction Template file (ATTEXT command)
- CBL – Content Browser Library file
- CDC – DesignCenter Preview Cache file (ADCENTER command)
- CFG – Configuration file
- CHM – Microsoft Compiled HTML file
- CHX – Batch Standards Checker file
- CTB – Color-dependent Plot Style file (PLOTSTYLE command)
- CUS – Custom Dictionary file
- DBQ – dbConnect Query file (DBCONNECT command)
- DCT – Dictionary file
- DXE – Legacy Data Extraction Wizard Template file; created with AutoCAD 2024 and earlier releases
- DXEX – Data Extraction Wizard Template file (DATAEXTRACTION command)
- DXX – Drawing Interchange Attribute file
- FMP – TrueType Font map
- HDI – Heidi Device Interface file
- HTM – HyperText Markup file
- HTML – HyperText Markup Language file
- INI – Initialization files (DGNMAPPING command)
- NFL – Custom Filters file (FILTER command)
- RML – Markup file (MARKUP command)
- SHX – Compiled Shape file (COMPILE command)
- SLG – Status Log file
- STB – Name-dependent Plot Style file (PLOTSTYLE command)
- TTF - TrueType Font file
- TXT – Attribute Template file (Express Tools – ATTIN/ATTOUT commands)
- UDL – Universal Data Link file (DBCONNECT command)
- XLG – Xref Log file (EXTERNALREFERNCE command)
Miscellaneous Files
- DSD – Publish Set file (PUBLISH command)
- PC3 – Plot Configuration files
- PLT – Plot file
- PMP – Plotter Model Parameters file
- PSS – Plot Stamp Settings file (PLOTSTAMP command)
- PTW – Publish to Web Template file (PUBLISHTOWEB command - Obsolete)
Plotting/Publishing Files
- ADSKLIB – Materials Library file (MATBROWSEROPEN command)
- IES – Illuminating Engineering Society file (WEBLIGHT command)