You could change the links to have them open in something like Google Docs.  It’s not a bad way to go, and if you wanted to do it in a hurry there are plugins for a lot of browsers that’ll do it client-side for you.

From: otrs-bounces@otrs.org [mailto:otrs-bounces@otrs.org] On Behalf Of Justin Noel
Sent: Saturday, 27 February 2010 1:15 AM
To: User questions and discussions about OTRS.
Subject: [otrs] Document Viewer

My agents are getting tired of having to download and then open attachments from customers just to quickly look at them.

Does anyone know of a plugin or module for OTRS that can let them view Word Docs and Excel?