Getting data OUT of Oracle 7.3.2

I need to find a utility that is like SQL Loader for loading data into Oracle, for getting data OUT of Oracle. I would like to pass it an owner/table_name, and have it spit out a tab delimited text file. I've tried writing it in PL/SQL using UTL_FILE, but you wind up having to list specific column names.

Any ideas?

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Richard Allard, Senior Programmer/Analyst
Communications Services
University of California, Santa Barbara
Santa Barbara, CA  93106
rallard_at_commserv.ucsb.edu