Yes, I downloaded the desktop version to my computer from their webpage...
http://www.lexcycle.com/desktop
I have been using this to convert various other format for my dead Jetbook for the past year or two.
I have associated most reader file formats to open with Stanza, but one can open Stanza, then open the epub, lit, mobi, prc, etc and choose export file and save to directory of choice.
My Jetbook stopped functioning a couple of weeks ago and I had been using my Iphone with stanza until I had resolved which reader to purchase. Stanza will send epubs right into the Iphone as Calibre does with Kobo, but I found that if I saved an Epub using the Stanza desk SW, exported and saved it (even if it was already an epub) as an epub, then just dragged and drop into the Kobo folder or an SD card, there were no font sizing problems. Too bad because I thought Calibre would work well, but maybe it is a large part of the problem not Kobe? I"m becoming more and more HAPPY with Kobo and will have to learn to blink during the page change..I first purchased and returned 2 Sony readers which would not charge, then followed someone's on this forum) kind advice and bought the Sony Charger (half price at Borders yesterday). It charged right up but the glare from the screen and the procedure to load books so awful, I returned it and bought the Kobo. I"m glad I did, I saved a bunch of money , it has much sharper fonts and drag and drop is always the easiest for me.