TextMagic’s text service for PC and Mac consists of a small desktop application that you can install on your computer to quickly send and receive text messages. The SMS software can be set up in a matter of minutes. Here’s how: Step #1: Log in to your TextMagic website account and navigate to Services ->. You can download the SMS software for PC or for Mac by clicking on the green download button. Step #2: Open the.exe file to begin installation.