brandondyer - I would also like such an application, but I don't know where to find it.

harrydavidson701l3 - I can't get the files. This might be a problem on my side, and also I am using Mac instead of a PC. I hope to find these STL files. I am still getting used to my Mac. I use it with my friend, and there are files I don't want him to see, so I had to download an app that lets you hide files - I found it on https://okaapps.com/product/1420002626.
It's a cool way to hide everything I don't want anyone to see. Thankfully I managed to find the okaapps store because there wasn't anything like that in the Mac app store. There are many useful apps I got from that store, and it makes it easier for me to get used to my Mac.