What is a ctx file and how do I open a ctx file?
CTX is a game script encoded by the Information Concealment Engine cipher. It is used by Valve games such as Team Fortress 2 and Counter Strike, and is used for obfuscating game scripts so that users can't tamper with them easily. CTX files can be converted to TXT files using Ctx Converter.
Relevant ctx file links:How to open ctx file on Youtube
How to open ctx file on Wikipedia
How to open ctx file on Microsoft.com