Question: how to move files from macbook pro to seagate external hard drive?
Answer: Double-click to open the place where the file you want to copy is located. ... 
Find the file or folder you would like to copy and right-click on it.
A drop-down menu will appear. ... 
The file or folder is now copied and held in the computer's short-term memory.
Double-click to open (My) Computer/This PC.