I'm having difficulty with mapping issues or preview issues when uploading a custom invoice.  At the moment, I upload my invoice I've created in word and am only able to map 8 of the 10 input fields that show on the invoice in yellow.  In this instance, if I were to hit next and proceed to the next step without mapping the two missing fields, the preview works correctly.  If I tweak the invoice, I can get all 10 fields to display in the mapping section; however, should I hit next to proceed to the preview step, I get a blank/grayed out preview box and a file automatically downloads - this file type that downloads isn't recognized by any program on my computer.  

As of yet - I haven't been able to affirmatively ascertain what exact tweaks I can make to allow QB to view the 2 missing fields/preview correctly.  Any input is appreciated.

Thanks