Hosting Client Management System

Small webhost needs a custom Client Management System. It must run from a webpage based on apache+php+mysql. The system is based on an Excel spreadsheet (see attached). Basically it must list clients and all their data and be able to sort it ascending or descending. Ths system does NOT need to create invoices; it's only to keep track of: where the domain was bought, with what user/pass, the years it has been renewed, list of usernames/passwords for all services (ftp,email,ww), on which server it is hosted, etc,etc,etc. The spreadsheet is in Spanish, but there´s no problem with translation.