.SCSS File Extension
What is an SCSS file?
An SCSS file is a style sheet that contains Sass language. It is similar to a .CSS file but with added capabilities, such as variables, nested rules, and mix-ins. SCSS files are used to format webpage contents.
SCSS files are stored in a plain text format. The SCSS language does not technically replace or extend CSS. The files are compiled into CSS files using programs such as CodeKit and Compass.app. They are then used for formatting webpage contents.
Programs that open SCSS files
Included with OS