You Don't! :(
No. Contact owner of the original file and ask for a different format.
DWG is file format for 2D and 3D design data, DWG in letters stands for "drawing". To open a DWG and view it, you need a DWG viewer. There are many DWG viewers online. The file format is designed by Autodesk. You can download free DWG viewer from Autodesk website. Or you can check with AIGraph CAD Viewer, a lightweight but powerful viewer
DWG is file format for 2D and 3D design data, DWG in letters stands for "drawing". To open a DWG and view it, you need a DWG viewer. There are many DWG viewers online, and you can try AutoDWG DWGSee. You may open dwg file in classic manner with the help of Autocad program or if you have some troubles, make use tool below.
Use the function of GstarCAD - "Start>Export OCF file".
.dwg
Two methods: Open a DGN file in Misrostation V8 and.... # File --> Saveas --> Select format to save: AutoCAD drawing files (*.dwg) # File --> Export --> DGN, DWG, DXF --> Select format to save: AutoCAD drawing files (*.dwg)
.dwg
For Microstation usersYou can use the saveas to get DWG/DXF from DGNYou can also use the "File --> export --> DGN, DWG, DXF" to get DXF filesFor AutoCAD usersCommand: DGNIMPORTAvailable in AutoCAD versions:AutoCAD MAPAutoCAD 2006~2010AutoCAD LT 2008~2010For other AutoCAD users and non-AutoCAD usersGet a plugin or look for stand alone converters to convert DGN to DXF.
Vector People provides an accurate and high-quality CAD conversion service that is tailor-made for your business requirements. Our highly skilled team of draftsmen and engineers use the latest software to convert paper drawings, hand-drawn sketches, blueprints, scanned drawings, and for pdf to AutoCAD conversion into highly accurate .dwg files or any other format.
.dwg is the default drawing format of GstarCAD; at present, GstarCAD is compatible with ever version of .dwg and .dxf files from 2.5 to 2010, it is means GstarCAD is compatible from AutoCAD 2.5 to AutoCAD 2012. If you are using AutoCAD 2013, you have to exchange the file with GstarCAD and save it as earlier .dwg version before 2010. By the way, GstarCAD will be compatible with AutoCAD 2013 soon.
Use hopen command or use GstarCAD backup file manager to open, the dwh file will be saved as dwg file after you open it. See related link.
DWG (from drawing) is a binary file format used for storing two- and three- dimensional design data and metadata. It is the native format for several CAD packages including DraftSight, AutoCAD, IntelliCAD (and its variants) and Caddie.