Q: Question

Look i went to a new site called collabmix.com and anyhow i tried uploading one of my Logic Pro samples for someone else to try and collaborate with and help me through my song making. Anyhow when i go to upload it, the site will only accept gif, jpg, jpeg or png. How do i save my logic pro song and make it a jpeg or jpg file? Please someone.. Im new to this site, and maybe someone asked this already so I'm sorry if it is a redundant question. Anyways ill be looking for an answer from the community here. thanks