It sounds like you somehow have Roblox files associate with windows notepad instead of the Roblox Studio. Right click on the place file you want to open, select "Open With" and click "Choose program...". Then, select Roblox Studio from the list, check "Always use the selected program to open this kind of file" and hit okay. That should fix the problem.
No, Roblox is completely free to play, but it is not open source.
It does,if it does not then you may have a problem. Uninstall Roblox Studio and all of the files in C/:.
you just open it
HOW TO OPEN AIO FILES
1. Press start 2. in search programs and files type roblox studio IF IT DOESNT WORK SUCK IT!
On Roblox, 'R' is the icon to the Roblox application and Roblox place files.
Click on the start menu, open the control panel, and open "Add and Remove Programs". Find the Roblox studio in the list and click "Remove". Roblox will then be uninstalled.
Select the application from your applications folder (Mac) go to the menu and type in Roblox Studio (PC)
There are many programs that will open power point files. Perhaps the most widely known is Open Office, which also has the virtue of being open source and therefore free.
You have to open Roblox Studio. Then, click on OBJECT on the top. You will see script on there. if that didn't help, go to roblox wiki.
go to roblox go to stuff and put create then something will pop up and will take you to your files and thats how you do it :)