It totes is, tho 😘
"Is there any difference between .ase and .aseprite files?
No. It's the same difference between .jpg and .jpeg. Both extensions can be used to save the full sprite information (layers + frames). The .aseprite alternative is given because Photoshop uses .ase extension for Adobe Swatches Exchange files.
"
https://www.aseprite.org/faq/#is-there-any-difference-between-ase-and-aseprite-f...