Thanks, I tried both those things, same message:
Incidentally, it treats both \\ and / the same and parses both 'correctly' in that it understands the input and seems to be going to right place. If I use \ then I get an error message, and if I don't put in a file name that is there I get a not found message.
So it is finding the file, and is not giving an error, but its not turning it into an array like I want. The file is just the numbers separated by commas (or in the text file case by returns).