I need help uploading a Celeste editor file to pico-8. Can someone help me?

can you define what’s a celeste editor file?

it is a website where you can make celeste levels. I will send you the link: https://jpegsarebad.github.io/celeste-editor/

ok, it seems that this tool lets you save P8 files, so these are regular pico-8 carts that you can load like any other cart. if you’re not sure about this, then follow the docs starting at https://www.lexaloffle.com/dl/docs/pico-8_manual.html#_Example_Cartridges (or find one of the videos that explain the same)

I do not have the purchased version of pico-8. Can I still do this, and could you give me more specific steps? Btw, thanks for the advice merwok.

Ah, you do need pico-8 to play pico-8 games.

Yup. Consider buying it. It's very cheap, especially considering the fantastic amount of thought and effort that went into creating all of this. Zep deserves that $15.

ok

but now... https://www.pico-8-edu.com