As well as the NavisWorks file formats, .nwf.nwd and .nwc, Roamer can open a variety of native CAD and scanning applications' formats:
.dwg
Bentley AutoPLANT .dwg, .mdb
.dxf
.dwf
.3ds
.dgn
.man
.iges
.step
Inventor parts & assemblies
VRML world files (.wrl;.wrz)
Riegl Scan data (.3dd)
Faro Scan data (.fls, .flw, .iQscan;.iQmod;.iQwsp)
Leica Scan data (.pts;.ptx)
Z+F Scan data (.zfc;.zfs)
ASCII Laser Scan data (.asc;.txt)
STL Stereolithography data (.stl)
IFC files (.ifc)
Sketchup (.skp)