You can open files stored in your drive using the web viewer.
Drawing file formats supported by the Web Viewer: dwg, dwt, dws, dxf, dwf, dgn, ifc, rvt
How to open a file:
By clicking the file name
Click the name of the file you want to open in My Drive file list.
The selected file will open from CADian Web Viewer.
Using action bar button
Select the checkbox of the file you want to open in My Drive file list.
Click the Open button from the action bar.
The selected file will open from CADian Web Viewer.
Using mouse right button
Select the file you want to open in My Drive file list.
Click the mouse right button and select the Open menu.
The selected file will open from CADian Web Viewer.