Script (automate fields of a site) [closed]

Hello, I have been given a task that I do not know how to start, automate fields of a certain site, not need to be typing them every month, I was given a spreadsheet with several values, and I would have to save them line by line. Well, I'm lost, I'd be grateful if anyone can help me. Make a script that automates the filling of these fields, I tried to use imacro, but the access pc is in another state