I am designing a software and want to save data in a txt file. but dont want the user to open them as txt file, only the app should do it.
Is this possible? if yes, how? I've searched in google, but not any good reason to help me out.
Make a new extension (you can check [filext.com](http://filext.com/) to make up one that is probably not in use) then when you double click on it you can tell Windows to use your app to open it. Read More
Edited by tinstaafl