MXD files have to be imported using the "Import Device" command. Which is, honestly, not the most straight-forward process.
Right-click on the device tree, select "Import Device", and then select the MXD file. On the next window, click on the SANYO device in the left (people always forget to do this), then select a device position to assign it to on the right. Next, press the RIGHT arrow button which actives, click OK on the pop-up external devices window... and you should be good to go.
Comment by LewBob on Wednesday July 16, 2014 at 23:06
Hi, I am a retired salesman from the A/V business and am trying to program an old MX850 of mine for a friend. He has a late model Sanyo LCD TV and I was hoping to find a discrete power code. I downloaded this figuring I could do a work around with the discrete off, but my MX850 editor won't open this file. Any suggestions? Thanks, Lew