How do I install Exchange app on Ledger?

Could you please guide me through the process of installing the Exchange app on my Ledger device? I'm new to cryptocurrency and I'm trying to set up my Ledger for secure transactions. I understand that installing the Exchange app is an important step, but I'm not sure where to start. Could you explain the steps involved in a simple and straightforward manner? Additionally, are there any specific requirements or considerations I should be aware of before proceeding with the installation? Thank you for your assistance in this matter.