HELP NEEDED: abandoned baby tortoise

My dad called me and told me that his employee abandoned a tortoise at their work office. I do not know the condition of the tortoise, I am going immediately after class to pick the little one up and figure out next steps.

I need advice. What do I feed the little one? How strong of a basking lamp does he need? What do I need to do for him?

Please give me any advice you can. I have a leopard gecko but obviously that is drastically different from a tortoise, I don’t know much about their care. I will do everything I can for this little fellow though.

I will attach a picture once I meet the little one