Download existing code from org
So now with the org connected, we need to grab all our Apex classes from the org. There is a new icon in the sidebar that resembles the Salesforce.com logo
Click on the icon and head over to Apex Classes.
Click on the download icon next to it and it'll download all Apex Classes from your org.
Now back in our explorer, under the classes folder located inside force-app/main/default, all our Apex classes are available!
Apex Classes downloads all our Classes and Test Classes (Apex Test Classes are Apex Classes with @isTest annotation). Do the same for Apex Triggers and it'll be available under the triggers folder
