Hi, I am generating an excel file, I would like it to appear in data history. I followed the direction in your FAQs regarding a similar problem: Added the following to universe_wsgi.ini [galaxy:datatypes] xls = galaxy.datatypes.data:Data,application/vnd.ms-excel restarted galaxy... I get no errors and an empty file in the history pane. My script works fine in the console, outputs a binary .xls file. How can I tell if the above changes to universe_wsgi.ini were "accepted" updated? Thanks. -Sohail