Depends on which L2FileEdit you are using, take a look at the code. Old file edit uses empty rows, while another one " a,a,.\\0\0 " or whatever. So, if you are using old file edit, you have too much info (row mismatch) or opposite, you miss that "a,a \\". I hope you got the point. In short, the structure doesn't match.
Copy random line and edit the id, name and it's desctiption and you will be fine.
Also, wrong section, as always..