Format registry

Supported formats — honestly labelled

The status below is generated from the live format registry and the converters configured on this server.

Files from well-known software

Only formats that open on this server right now are listed.

AutoCADDXF

Tekla StructuresIFCNC1NC

Autodesk RevitIFC

ArchicadIFC

Adobe AcrobatPDF

SOLIDWORKSSTL3MF

RhinoOBJSTL3MFDXF

BlenderGLBGLTFOBJFBXSTLPLY

FreeCADIFCDXFSTLOBJ

Microsoft ExcelXLSXCSV

Microsoft WordDOCX

LibreOfficeXLSXDOCXCSVPDF

Google SheetsXLSXCSV

Google DocsDOCXPDF

Primavera P6XER

QGISGEOJSONKML

Google EarthKMLKMZ

ArcGISGEOJSONKML

Leica CyclonePTSXYZ

Product names and logos are trademarks of their respective owners. WORLD STEEL is not affiliated with or endorsed by them. Native model files such as RVT, SKP or SLDPRT cannot be opened directly: export IFC, STL, OBJ or PDF from those applications. See the format registry for every format and its status.

Direct ViewConversion RequiredSDK RequiredMetadata OnlyStorage OnlyUnsupported

CAD

9 formats

Ext	Format	Status	Notes
3dm	Rhino 3D Model OpenNURBS	SDK Required	Requires rhino3dm / OpenNURBS integration.
dgn	MicroStation Design DGN V7/V8	SDK Required	Requires ODA Drawings SDK or Bentley tooling.
dwf	Design Web Format DWF	SDK Required	Requires Autodesk/ODA SDK.
dwfx	Design Web Format XPS DWFx	SDK Required	Requires Autodesk/ODA SDK.
dwg	AutoCAD Drawing DWG	Conversion Required · NOT CONFIGURED	Converted to DXF on upload (bundled dwgdxf with Node.js, or ODA File Converter), then shown in the DXF viewer. R13–R2018; configured.
dws	AutoCAD Standards File DWG	Conversion Required · NOT CONFIGURED	Same binary format as DWG.
dwt	AutoCAD Drawing Template DWG	Conversion Required · NOT CONFIGURED	Same binary format as DWG.
dxf	AutoCAD Drawing Exchange Format DXF (ASCII)	Direct View	ASCII DXF R12–2018 entities: LINE, LWPOLYLINE, POLYLINE, CIRCLE, ARC, ELLIPSE, SPLINE (approx.), TEXT, MTEXT, INSERT, POINT, SOLID, DIMENSION (block geometry). Binary DXF not supported.
skp	SketchUp Model SKP	SDK Required	Requires SketchUp SDK.

BIM

14 formats

Ext	Format	Status	Notes
bcf	BIM Collaboration Format BCF 2.x/3.0	Metadata Only	Import into a BIM workspace (Issues).
bcfzip	BIM Collaboration Format BCF 2.x/3.0	Metadata Only	Import into a BIM workspace (Issues).
ifc	Industry Foundation Classes IFC2X3 / IFC4 / IFC4X3 (STEP)	Direct View	Rendered in the browser with web-ifc + Three.js.
ifcxml	IFC XML ifcXML	Metadata Only	XML source view only; 3D view requires conversion to IFC-SPF.
ifczip	IFC Compressed IFC (ZIP container)	Direct View	Extracted to IFC during processing.
mod	Archicad Module MOD	SDK Required	Requires Graphisoft tooling.
nwc	Navisworks Cache NWC	SDK Required	Requires Navisworks SDK.
nwd	Navisworks Document NWD	SDK Required	Requires Navisworks SDK.
nwf	Navisworks File Set NWF	SDK Required	Requires Navisworks SDK.
pln	Archicad Project PLN	SDK Required	Requires Graphisoft tooling; export IFC.
rfa	Revit Family RFA	SDK Required	Requires Autodesk SDK.
rte	Revit Template RTE	SDK Required	Requires Autodesk SDK.
rvt	Revit Project RVT	SDK Required	Requires Autodesk Platform Services / Revit. Export to IFC for viewing.
vwx	Vectorworks VWX	SDK Required	Requires Vectorworks; export IFC.

Structural Steel

15 formats

Ext	Format	Status	Notes
db1	Steel detailing database DB1	Storage Only	Proprietary; stored for sharing only.
e2k	ETABS Text Model E2K	Direct View	Shown as text.
edb	ETABS Database EDB	SDK Required	Requires CSI ETABS.
iges	IGES 3D Model IGES 5.x	Conversion Required · NOT CONFIGURED	Requires an IGES converter adapter.
igs	IGES 3D Model IGES 5.x	Conversion Required · NOT CONFIGURED	Requires an IGES converter adapter.
kss	KSS part/assembly list KSS (text)	Direct View	Shown as text.
nc	DSTV NC Part File DSTV NC	Direct View	Detected by content: DSTV (ST block) or G-code.
nc1	DSTV NC Part File DSTV NC (Standard Description for Steel Structures)	Direct View	Header, holes (BO), contours (AK/IK), markings (SI/KO), cuts (SC), notches.
s2k	SAP2000 Text Model S2K	Direct View	Shown as text.
sat	ACIS SAT ACIS	SDK Required	Requires ACIS kernel.
std	STAAD.Pro Input STD	Direct View	Shown as text.
step	STEP 3D Model ISO 10303-21	Conversion Required · NOT CONFIGURED	Requires a STEP→GLB/STL converter adapter.
stl	Stereolithography STL (ASCII/binary)	Direct View
stp	STEP 3D Model ISO 10303-21	Conversion Required · NOT CONFIGURED	Requires a STEP→GLB/STL converter adapter.
xml	XML Data XML	Direct View	Shown as escaped source text (never executed).

CNC

5 formats

Ext	Format	Status	Notes
cnc	G-code Program ISO 6983	Direct View
dxf	DXF Cutting Profile DXF	Direct View
gcode	G-code Program ISO 6983	Direct View
iso	G-code Program ISO 6983	Direct View	Disc images (.iso) are detected by signature and stored only.
tap	G-code Program ISO 6983	Direct View	Tool-path preview (G0/G1/G2/G3) + program text.

Structural Analysis

6 formats

Ext	Format	Status	Notes
f2k	SAFE Text Model F2K	Direct View	Shown as text.
fem	FE Model (text) Nastran-style bulk data	Direct View	Shown as text.
r3d	Robot Model R3D	SDK Required	Requires Autodesk Robot.
rsn	Robot Structural Analysis RSN	SDK Required	Requires Autodesk Robot.
sdb	SAP2000 Database SDB	SDK Required	Requires CSI SAP2000.
str	Structural model file STR	Storage Only	Ambiguous vendor format; stored only.

3D Models

12 formats

Ext	Format	Status	Notes
3ds	3D Studio Mesh 3DS	Direct View
3mf	3D Manufacturing Format 3MF	Direct View
blend	Blender Scene BLEND	SDK Required	Requires Blender (export glTF).
dae	COLLADA COLLADA 1.4/1.5	Direct View
fbx	Autodesk FBX FBX 7.x binary/ASCII	Direct View	Three.js FBXLoader (FBX 7.0+). Older FBX versions are not supported.
glb	glTF Binary glTF 2.0	Direct View
gltf	glTF JSON glTF 2.0	Direct View	Self-contained (embedded buffers) glTF only.
max	3ds Max Scene MAX	SDK Required	Requires Autodesk 3ds Max.
obj	Wavefront OBJ OBJ	Direct View	Geometry only (external MTL/textures not loaded).
ply	Polygon File Format PLY	Direct View	Meshes; point-only PLY is rendered as points.
usd	Universal Scene Description USD	Conversion Required · NOT CONFIGURED	No converter bundled.
usdz	USDZ USDZ	Conversion Required · NOT CONFIGURED	No converter bundled.

Point Cloud

10 formats

Ext	Format	Status	Notes
e57	ASTM E57 ASTM E2807	SDK Required	Requires libE57 / PDAL processing server.
las	LAS LiDAR ASPRS LAS	Conversion Required · NOT CONFIGURED	Requires PDAL processing server.
laz	LAZ LiDAR LASzip	Conversion Required · NOT CONFIGURED	Requires PDAL processing server.
pcd	Point Cloud Data PCL PCD	Direct View
ply	PLY Point Cloud PLY	Direct View
pts	PTS Point Cloud Leica PTS (ASCII)	Direct View	Rendering is capped at 5 million points.
ptx	PTX Point Cloud Leica PTX	Storage Only
rcp	ReCap Project RCP	SDK Required	Requires Autodesk ReCap.
rcs	ReCap Scan RCS	SDK Required	Requires Autodesk ReCap.
xyz	XYZ Point List ASCII XYZ	Direct View

GIS

12 formats

Ext	Format	Status	Notes
csv	CSV Coordinates CSV	Direct View
dem	Digital Elevation Model DEM	Storage Only
dtm	Digital Terrain Model DTM	Storage Only
geojson	GeoJSON RFC 7946	Direct View	2D vector map (no basemap tiles).
gml	Geography Markup Language OGC GML	Direct View	Shown as text.
gpkg	GeoPackage OGC GeoPackage	Metadata Only	Table listing when pdo_sqlite is available.
kml	Keyhole Markup Language OGC KML 2.2	Direct View	2D vector map (no basemap tiles).
kmz	KML Zipped OGC KML 2.2 (ZIP)	Direct View	Main KML extracted during processing.
shp	Esri Shapefile ESRI Shapefile	Storage Only	Requires .shx/.dbf companions; upload as ZIP for future GDAL support.
tif	GeoTIFF / TIFF TIFF 6.0 / GeoTIFF	Conversion Required · NOT CONFIGURED	Converted to PNG when Imagick is available.
tiff	GeoTIFF / TIFF TIFF 6.0 / GeoTIFF	Conversion Required · NOT CONFIGURED	Converted to PNG when Imagick is available.
tin	Triangulated Irregular Network TIN	Storage Only

Project Management

7 formats

Ext	Format	Status	Notes
ics	iCalendar RFC 5545	Direct View
json	JSON Data RFC 8259	Direct View
mpp	Microsoft Project MPP	SDK Required	Requires MPXJ / Microsoft Project. Export to XML or XLSX.
mpt	Microsoft Project Template MPT	SDK Required
xer	Primavera P6 XER XER (tab-delimited)	Direct View	Tables shown as grids.
xls	Excel 97-2003 Workbook BIFF8	Conversion Required · NOT CONFIGURED
xlsx	Excel Workbook Office Open XML	Direct View

Documents

16 formats

Ext	Format	Status	Notes
csv	Comma-Separated Values RFC 4180	Direct View
doc	Word 97-2003 MS-DOC	Conversion Required · NOT CONFIGURED
docx	Word Document Office Open XML	Direct View	Basic text/table preview built in; full-fidelity PDF via LibreOffice adapter.
eml	Email Message RFC 5322	Direct View	Headers and text shown; attachments not executed.
html	HTML Document HTML	Direct View	Source view only (never rendered or executed).
json	JSON Document RFC 8259	Direct View
msg	Outlook Message MS-OXMSG	SDK Required
pdf	Portable Document Format PDF 1.x / PDF/A	Direct View	Rendered with PDF.js.
ppt	PowerPoint 97-2003 MS-PPT	Conversion Required · NOT CONFIGURED
pptx	PowerPoint Presentation Office Open XML	Conversion Required · NOT CONFIGURED
rtf	Rich Text Format RTF	Conversion Required · NOT CONFIGURED
txt	Plain Text Text	Direct View
xls	Excel 97-2003 BIFF8	Conversion Required · NOT CONFIGURED
xlsm	Excel Macro-Enabled Workbook Office Open XML	Direct View	Macros are never executed.
xlsx	Excel Workbook Office Open XML	Direct View	Values only; formulas are never executed.
xml	XML Document XML 1.0	Direct View

Images

11 formats

Ext	Format	Status	Notes
avif	AVIF Image AV1 Image File Format	Direct View	Browser support dependent.
bmp	Bitmap Image BMP	Direct View
gif	GIF Image GIF89a	Direct View
heic	HEIC Image HEIF	Conversion Required · NOT CONFIGURED	Needs Imagick built with libheif.
jpeg	JPEG Image JPEG	Direct View
jpg	JPEG Image JPEG	Direct View
png	PNG Image PNG	Direct View
svg	SVG Vector Image SVG 1.1	Direct View	Displayed as an image with a sandboxed CSP; scripts never run.
tif	TIFF Image TIFF 6.0	Conversion Required · NOT CONFIGURED
tiff	TIFF Image TIFF 6.0	Conversion Required · NOT CONFIGURED
webp	WebP Image WebP	Direct View

Video

8 formats

Ext	Format	Status	Notes
avi	AVI Video AVI	Conversion Required · NOT CONFIGURED
m4v	M4V Video MP4	Direct View
mkv	Matroska Video Matroska	Conversion Required · NOT CONFIGURED
mov	QuickTime Movie QuickTime	Direct View	Plays when encoded with H.264; otherwise transcoding via FFmpeg adapter.
mp4	MPEG-4 Video MP4	Direct View	Playback depends on browser codecs (H.264/AAC recommended).
mpg	MPEG Video MPEG-1/2	Conversion Required · NOT CONFIGURED
webm	WebM Video WebM	Direct View
wmv	Windows Media Video ASF	Conversion Required · NOT CONFIGURED

Ext	Format	Status	Notes
7z	7-Zip Archive 7z	Storage Only
gz	Gzip File RFC 1952	Storage Only
rar	RAR Archive RAR	Storage Only
tar	TAR Archive POSIX tar	Metadata Only
tgz	Gzipped TAR tar+gzip	Metadata Only
zip	ZIP Archive PKZIP	Metadata Only	Contents listed; can be imported as individual files.