Very simple CMS built on top of Google Sheets

sheetscms.com

Hey, where do I find the two PHP files for uploading to my server? Can't seem to find it on your site...

I have done a similar idea using spreadsheet in place of database for searching user profiles through API in PHP.

Yup, that's the exact implementation am using, but just with JSON instead of an API. Do you have a link for your project?