-;; mapping table. Please send any new tables to the maintainer listed in this
-;; file. The maintainer should be able to help with any issues and may create a
-;; new mapping table given sample data.
+;; mapping table. If you create a table for a program not not already supported,
+;; please share it with the mailing list so it can be added to this program.
+;; The maintainer should be able to help with any issues and may create a new
+;; mapping table given sample data.
+;;
+;; Mapping table tips:
+;; * The repeat keyword expands numbered field names, based on the first
+;; field, as many times as they exist in the csv data.
+;; * All mapping fields are optional. A simple mapping table could be
+;; (setq bbdb-csv-import-mapping-table '((:mail "Primary Email")))
+;; * :xfields uses the csv field name to create custom fields in bbdb. It downcases
+;; the field name, and replaces spaces with "-", and repeating dashes with a
+;; single one . For example, if you had a csv named "Mail Alias" or "Mail - alias",
+;; you could add it to :xfields in a mapping table and it would become "mail-alias"
+;; in bbdb.