I'm going to get my R2 soon. Does anyone know if it can open (read+write) basic Excel documents? I have a "Weekly Todo" XLS (it's just blank grids) that I always print for writing down notes in the grids, and by end of week, put those back to computer. Would be great if I can skip the print-transcribe loop.
Nope. It's best to think of the rM just as a slightly digital notebook instead of as a computer. It handles PDFs, EPUBs, and its own notebook format wonderfully, but that's it.
To add to the sibling comment, there are multiple background images you can use when taking notes on the rM. Apparently you can customize them (from my research - haven't received my rM2 yet TBH) so you could likely drop in a grid image to use as a background.