
CandyFace
Hi weo_af
The currently released version of PyxelEdit does not support bmp exportation. The upcoming version will, however as there is no ETA on that yet, you might want use some other software for the BMP exportation, or contact Danik (the developer) if you want to try the newest (presumably unstable) version.
That was the image part.
Getting the xml data should be simple, you just choose export->tilemap and select xml, then you should have the data needed.