Title: How to Set Default Apps for File Extensions Using duti on macOS

Below is a combined step-by-step instruction set for changing default apps for file extensions using the duti command: macOS: 

Purpose:

This guide explains how to change the default applications for specific file extensions on macOS using the terminal and the duti command-line tool.

Abstract: Cloud-Based Backup of MacOS Platform Using 'rclone' command in bash.