The regular react props.children. You must render {props.children} within your custom renderer or you won't see your rows and cells.
className
className:string
Classes to apply to your top-level element. You can add to these, but your should not overwrite or omit them unless you want to implement your own CSS also.
data
data:T[][]
The same data array as from main ReactDataSheet component
The properties that will be passed to the SheetRenderer component or function.