Anyone, is there a standard extension for Tab-Separated Table format files? I kind of thought it might be ".tst" or ".TST", but I see the example table in examples/ssn75/ is called "simple.TAB". Or maybe there just isn't one. Mark -- Mark Taylor Astronomical Programmer Physics, Bristol University, UK [log in to unmask] +44-117-928-8776 http://www.star.bris.ac.uk/~mbt/