There are several reputable communities and repositories where you can find free style files compatible with the 's SFF1 format: How to Download 3251 FREE Styles for the E463 Keybord
Expanding the musical repertoire of your Yamaha PSR-E463 Go to product viewer dialog for this item.
is simple with a variety of free downloadable style files. While the keyboard comes with 235 built-in styles, you can add up to 10 custom styles at a time to its internal memory (locations 236–245) using Windows 10 and a USB thumb drive. Best Sources for Free Yamaha PSR-E463