Hello Andrew, Your version of the display_peek() method ( which calls the make_html_table() method ) in ~/lib/galaxy/datatypes/tabular.py may need to be altered in order to do what you want since currently it simply prints the column numbers. Greg Von Kuster Galaxy Development Team Andrew Olson wrote:

I have a tool that generates tabular output but I don't know how to get the column headings assigned. The output format is not fixed since the user decides what data goes into the output.

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