Looks neat, thanks! Unfortunately the first file I tried it on it didn't do anything useful because that file had header and footer lines (FTSE market files ha

Looks neat, thanks! Unfortunately the first file I tried it on it didn't do anything useful because that file had header and footer lines (FTSE market files have descriptions in the first 2-3 lines and an XXXXXXXXXX marker on the last line). Can you add an option to drop the first X and last Y lines? That's pretty common for things like pandas.read_csv() etc...