Unity : How to get a list of path -s to all files (only files excluding sub folders ) in some folder?

GetListOfFilesInFolder.cs

private static List<string> GetListOfFilesInFolder(string path)
{
        string[] fileEntries = System.IO.Directory.GetFiles(path);
        List<string> result = new List<string>();
        foreach(string f in fileEntries)
        {
            if(System.IO.File.Exists(f))
            {
                result.Add(f);
            }
        }
        return result;
 }