I have recently downloaded the dng converter 6.7 to convert my cr2 files from my 5d mark iii, however it keeps on telling me i have no files to convert, is there anything i can do about this? i am using elements 10
Testing with my own 5D Mark III file, I was able to successfully convert to DNG, so the issue is likely caused by something going on in your files. Which is why I asked about them being touched by other software, which may have changed the files and make them unconvertable in the eyes of the DNG converter.
Test with the new 7.1 DNG converter:
See if that changes anything. If not, we'll want to take a look at one of your files to test.