Digital RAW images recorded using Leica D-Lux devices (.rwl) can opened and edited in most of the better photo editing tools and exported to either a digital negative (.dng) for further editing work, or a s JPEG (and other bitmap format) picture for sharing purposes, so rwl to dng conversion is certainly doable. The advantage of keeping digital negative is that you always have the original, with all the meta data recorded by the device.
Open RWL file Open DNG file