How can you transfer files from excel to autocad?

by inserting the USB of a total station for transfering data, during process chose dxf file just what nadhmi said, it automatically open as autocad in your computer. 

save in cvs  coma dilemeted

select data that you are copying and press control C to copy the data you are transferring from autocad or the clipboard in autocad choose select the Edit/ paste special..that's it..

1. In Excel, select the data area you want to copy.
2. Press Ctrl+C to copy the data to the Clipboard.
3. In AutoCAD, choose Edit | Paste Special | AutoCAD Entities.
4. Click OK.

MAKE CHEAT ON EXCEL AND

CONVERT files from excel to autocad 

via topcon link directly down load as dxf file, which can open in any version of Autocad.

via topcon link to format gts7 or trensform it to txt and you have toupload it on autocad via "inmporter point"