How do I import my Coinbase transaction history CSV file?

Excuse me, could you possibly elaborate on the process for importing my Coinbase transaction history CSV file? I'm not entirely sure where to begin with this task and I'd really appreciate some clear guidance. Could you please break it down step-by-step, from logging into my Coinbase account to successfully importing the file into the desired platform or application? I'm quite new to cryptocurrency and finance, so the more detailed explanation you could provide, the better. Thank you in advance for your help.