the renoise format means you should submit only an .xrns file, that was made using the renoise software:

https://battleofthebits.com/lyceum/View/renoise%20(format)

for info about any other battle formats that might come up in the future, please check the below reference before uploading. this will ensure you use the right composition software and submit the right file type:

https://battleofthebits.com/lyceum/View/Format

thanks :)