public void ExportAsFile(string filetype)
    {
        string filename = System.DateTime.Now.ToString("yyyyMMddHHmmss");
        string path     = System.Environment.GetFolderPath(System.Environment.SpecialFolder.MyDocuments);

        if (!Directory.Exists(Path.Combine(path, "CalcflowExports")))
        {
            Directory.CreateDirectory(Path.Combine(path, "CalcflowExports"));
        }
        FileExporter.SaveMesh(meshVisuals, Path.Combine(Path.Combine(path, "CalcflowExports"), filename), filetype);
    }