What that tutorial was speaking of, was the StarDrafts built-in TBL editor, called TBLEdit. It had the option to export a TBL as a text file, but it worked only for the TBLs inside CWAD archives (old and abandoned modding format), so it's no use now, given everyone moved to MPQs. You may ask/PM ShadowFlare for adding this feature to TBLPad, if you want.