Two methods to show file extensions on Mac.
How to find IP address on Mac, Macbook, Mackbook Air, Macboook Pro?
How to transfer files between Android mobile phones and Mac wirelessly using free file transfer ShareIt app?
How to share files between Windows PC and Mac through Wi-Fi using ShareIt for free?
Steps to change the default app a file opens with on Mac.
How to mirror iPhone iPad to Mac for free? Use Quicktime Player from Apple to cast screen from iPhone iPad to Mac without any fee.