On the web side, ://roblox.com is a standard file used by search engines to understand which parts of the Roblox website they are allowed to crawl. Legitimate Text Features in Roblox

A user is told to download roblox.txt , copy its contents (often a long string of JavaScript code), and paste it into their browser's console or a "cookie logger" site.

Allows for XML/HTML-style tags to format text with bold, italics, or custom colors within a single label.

You cannot directly "require" a .txt file into a script for security reasons. Developers instead use the HttpService to fetch text data from external hosts (like GitHub or a personal server).

If you were sent this by someone online promising free Robux or "hacks," do not open it or copy its contents. How to Write on a Sign in Roblox Studio