convert what to what?
technically, you cannot "save" or "upload" "to" vcarve pro - whatever you mean by that is not clear at all
phrases like "pull up" and "save or upload to" are not descriptive of any specific vcarve file handling procedure that I am aware of
All I know is, I can download any DXF on here and open it in, or import it into, vcarve pro with no problems
Likewise, I can download and unzip any .zip file and utilize the included DXF and EPS files in vcarve pro with no problems
Only if you describe exactly what steps you take with exactly which file and exactly what happens - then it might be possible to figure out what's wrong