Michel,
I would have done a data driven approach, having a table the extension as a primary/unique key, a column for a description, and a column for the definition, then in your procedure you just loop the table searching for a matching definition, that way you do not need to change the code every time you've got a new extension to work with (still you will need to have code for exceptions like you have for word) and the code would be much shorter and simpler.
Hugo
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges
