While I love LWP, I wish it were named something a bit.. nicer.

How about something like the "World-Wide Web library for Perl". Then we could shorten it to libwww-perl, or even LWP ;)

Seriously though, those are two (three if you count both Spreadsheet::ParseExcel and Spreadsheet::WriteExcel) of my favorites - also:

• DBI
• DBD::Excel
• DBD::SQLite