How to assign a sprite sheet I made to a sprite renderer?

I used Piskel to make the sprite sheet but I don’t know how to assign it. I tried to assign it by dragging the sprite I made from the assets area to the box that has the sprites name but that didn’t work. So I tried to assign the sprite by clicking on the box that has the sprites name and searching for it but it didn’t find the sprite either, so Im just kind of lost here.

I assume you only want to assign a specific aspect of that sprite sheet to the sprite renderer. Therefore, select the sprite sheet file and click on the inspector. Change from Sprite Mode: Single, to Sprite Mode: Multiple and set the pixels per unity to the size you divided all components up into. Ex 16 (16 x 16 pixel components). Next, go into the sprite editor and click on the slice button on the top. Remember to click apply and save settings. Then, you can expand that sprite sheet image into all the parts by clicking the small arrow and only drag that individual component into the sprite renderer. I hope it helps!?