Goo Day Sir

I am trying to adapt the above calendar date picker to my project but am having issues doing so as I am not as VBA savvy as I would like to be, so could you please state or show how i would do this.

What I would like to do is have a textbox/combobox populated with a date selected from the calendar on a button click.

I also notice on you sheet1 you have a test file picker, multiple file picker and folder picker, but when I don't see the code that would allow me to adapt these to my form which i would love to do as, based on the nature of my project, they would be extremely useful.