
Here's a movable touch plate on Amazon that has a low profile:
https://www.amazon.com/Kehuashina-Z-Axi ... =8-35&th=1
Ebay has similar ones all in the $30-$60 dollar price range.
I use this product now with great results. I have two on my machine, one is my movable touch off and the other is fixed to my X axis gantry and the spindle moves to it for measuring tool offsets during a tool change. These use optical sensors and very accurate for my needs cutting aluminum.
https://topcom.cz/products/digz/digzfix/
I don't understand your question about "importing files". Importing into what?