DB Connect to Progress DBMS

Hi, I am totally new to BW so apologies if this is a daft question or I use duff terminology!!!! I am just trying to get my head around BW to get a high level way forward!

I would like to connect BW to a Progress DBMS Database using DB Connect to extract some data to use in queries but according to help.sap.com Progress is not a supported Database. Anybody know any different to this?

If this is so, is there any better way of importing this data into BW than extracting data into a .csv from Progress and then importing this .csv into BW????

Many Thanks for any help or direction you can give!

Regards

Simon