            files.forEach(function(filename){
                var shouldReplace = !excludedFiles.some(function(excludedFile){
                  excludedFile = excludedFile.replace(/^\s*@import\s+/, '').replace(/^["']/g, '').replace(/["']\s*;?$/,'');
                  var pathEndsWith = new RegExp(excludedFile + '$');
                  return ~filename.replace(/\.(scss|sass)$/, '').search(pathEndsWith);
                });

                if(shouldReplace){
                  replaceString += process(filename);
                }
                
            });