Open LESS File

The LESS file extension is associated with a style sheet language that is regarded as a dynamic preprocessor. LESS extends the functionality of CSS (Cascading Style Sheets), permitting developers to employ techniques like variables, mixins, functions, and mathematical operations. In addition, LESS provides mechanisms for organizing styles in a more structured and clear manner, making style sheets more readable and maintainable.
LESS File Usage

LESS files are commonly used by web developers for creating websites or web applications. So, if you are not a web developer, you might never need to open or use a .less file.

Opening LESS Files

Opening a LESS file is generally the same process as opening any text-based file, like HTML or CSS. You can open a LESS file with a text editor. Some common text editors include Notepad++(https://notepad-plus-plus.org) for Windows users, Textmate(https://macromates.com) for Apple users, or Sublime Text(https://www.sublimetext.com) which is available for both platforms.

There are several development tools also available for working with .less files, like Grunt and Gulp, which can compile .less files into .css files.

Compilation of LESS Files

For a browser to interpret the code, the LESS files need to be compiled into regular CSS. The web developers need a LESS compiler, such as Less.js, to accomplish the CSS conversion. Post this conversion, the rendered CSS can then be included to a HTML file for styling web content. LESS File Important Information

Remember, it is important to note that if you open a .less file in a text editor and save changes, you should be cautious not to overwrite the .less extension with a .txt extension. If the .less extension changes, it might affect the way programs read and open the file. Hence, care should be taken while handling the LESS file.

Moreover, keep in mind that LESS files cannot be applied straight to HTML like regular CSS files, they must be compiled into CSS before a browser can interpret them.