@jessenator I finally loaded the software and started using my TL866II+ and I even read the manual all the way through. Gasp.
Sadly, the Xgecu software does not include a feature to deinterleave a wide .bin file for programming on narrower chips. For example, you have a 32 bit wide ROM file for the Wombat and need it deinterleaved across 4 8-bit wide Flash chips.
You'll need to write some kind of program or script to do that yourself as a separate step.
It shouldn't be difficult, but it is another step.