Hi. I'm new to Alteryx and built a macro that saved as a .yxmc file. I see it in my file explorer, but I am unsure of how to quickly insert it into my workflow. I don't see it anywhere on the toolbar! Please help!

I have a long series of digits (15) and I need to add three periods- one after the 5th character, one after the 9th, and one after the 11th. The field I want to update has the same number of characters every time and I need the periods and the same place every time. So I need: Before: 12345678901234...