Supported formats
An iTwin Connector can be used to import data into an iModel. iTwin Connectors have been developed for many different applications and file formats. The below tables list connectors that can be called via this API.
Bentley applications
Application
Connector
Extension
Connector Identifier
Supported Versions
AutoPLANT
AutoPLANT Modeler
dwg
AUTOPLANT
AutoPLANT 10.01.00.67 and higher
Bentley Raceway and Cable Management
MicroStation
dgn
MSTN
CONNECT from Update 4
MicroStation CONNECT / V8i Editions
MicroStation
dwg, i.dgn
MSTN
CONNECT / V8i Editions
OpenBridge Designer
Civil
dgn
CIVIL
CONNECT Edition
OpenBuildings Designer
OpenBuildings
dgn
OBD
CONNECT Edition
OpenRail Designer
Civil
dgn
CIVIL
CONNECT Edition
OpenRoads Designer
Civil
dgn
CIVIL
CONNECT Edition
OpenSite Designer
Civil
dgn
CIVIL
CONNECT Edition
OpenTower Designer
Open Tower
otxml
OPENTOWER
CONNECT from Update 2
ProStructures
Prostructures
dgn
PROSTRUCTURES
CONNECT from Update 6
Third Party applications
Application
Connector
Extension
Connector Identifier
Supported Versions
3D Studio
MicroStation
3ds
MSTN
AutoCAD
AutoCAD Dwg
dwg, dxf
DWG
2015 - 2025
Civil 3D
Civil3D
dwg
CIVIL3D
2015 - 2025
Intergraph Smart 3D Review
VUE
vue
SPXREVIEW
Intergraph Smart P&ID
SmartPlant P&ID
zip
SPPID
2014 R1, 2019
Navisworks
Navisworks
nwd, nwc
NWD
2013 - 2024
Revit
Revit
rvt
REVIT
2015 - 2024
Rhino
MicroStation
3dm
MSTN
Sketchup
MicroStation
skp
MSTN
2017 - 2022
Interchange formats
Interchange Formats
Connector
Extension
Connector Identifier
Supported Versions
ACIS
MicroStation (via dgn)
sat
MSTN
Up to 25.0
ArcGIS Feature Service
Geo
geodb
GEOSPATIAL
10.6 and higher
Autodesk 3DS Max
MicroStation
3ds
MSTN
CGM
MicroStation (via dgn)
dgn
MSTN
1
Collada
MicroStation (via dgn)
dae
MSTN
Hidden edges
MicroStation
hln
MSTN
DXF
AutoCAD
dxf
DWG
2015 - 2022
FBX
MicroStation
fbx
MSTN
Up to and including 2011
Geojson
Geo
geojson
GEOSPATIAL
IFC
IFC
ifc
IFC
IFC2x3, IFC4, IFC4.3
IGES
MicroStation (via dgn)
igs
MSTN
2.0, 3.0, 4.0, or 5.0 fixed-length ASCII
iModel
MicroStation
i.dgn
MSTN
JT
MicroStation (via dgn)
jt
MSTN
8.0 - 10.6
kml
Geo
kml
GEOSPATIAL
Land XML
MicroStation (via dgn)
land.xml
MSTN
MIF / MID
MicroStation (via dgn)
dgn
MSTN
OBJ
MicroStation
obj
MSTN
Parasolid
MicroStation (via dgn)
x_t
MSTN
Up to 13.0
Shape files
Geo
shp
GEOSPATIAL
Sketchup
MicroStation
skp
MSTN
2017 - 2022
STEP
MicroStation (via dgn)
stp
MSTN
STL
MicroStation (via dgn)
stl
MSTN
VUE
VUE
vue
SPXREVIEW
Web Feature Service (WFS)
Geo
geodb
GEOSPATIAL
SVG
MicroStation (via dgn)
dgn
MSTN
Note: Files in the format listed with the Connector value of "MicroStation (via dgn)" must first be imported into MicroStation and saved as a dgn. The produced dgn files can then be synchronized by the MicroStation Connector.