Tab delimited
From Just Solve the File Format Problem
Like CSV, Tab delimited files are structured data sets consisting of one record per line with fields separated by a delimiter, in this case the tab character (character #9 in the C0 controls, shared by ASCII, Unicode, and many other character sets). The first line consists of headers giving the column names. The field values are expected not to have tab characters in them, thus removing the need for special quoting or escaping.
