When opening the file you will want to either have the editor you're using opened as in administrator mode (windows) and have administrative rights to the file(s) in question. In the following example we're using windows native Notepad application which when right clicked will give options on how to run the app. AGAIN, run as administrator.
If you cannot do this, you lack the rights required on your machine and should work with your network manager or the owner of the computer to resolve this. (Forward them the installation instructions)