Can you upload a php file into Adobe Muse when hosting with BC?

My client has sent me a .txt file from a supplier and asked me to upload to the site we are creating in Adobe Muse.

They said, 'You will need to save this file as a php file for it to work, and upload it to your website - you can use it as a stand-alone, but I'd recommend just "including" it in another page, so you get your branding, etc. around it.'

Can anyone assist in converting a .txt to .php and then loading it to Adobe Muse? I will be using Business Catalyst to host the site once complete.

Thanks, we are really stuck here with a short deadline.

Patrick