compile scss

Hello, i donwloaded an website which use following files for styling: main.scss & main.min.css Changes i mke in either of these files aren't reflected on the website for some reason, i already tried compiling it with linux cli tool sass (installed using npm -g sass) this sass tool create a new main.min.css.map and also replace main.min.css yet i still don't notice any change whatsover I thought the issue would be a chancihg problem so i appended parameters to the url to avoid caching, i also purged cloudflare cache for the main.min.css file, both things did not help. anyone here can help me out? Regards, Infinimonster