Aspose.Cells Cloud REST API supports saving excel files as kinds of format files using Swift. SDK supports development languages. They include Android, C#, Go, Java, NodeJS, Perl, PHP, Python, Ruby, and swift....Formats Microsoft Excel: Xls, Xlsx, Xlsb, Xlsm, Xlt, Xltx, Xltm...Markdown Microsoft Excel: Xls, Xlsx, Xlsb, Xlsm, Xlt, Xltx, Xltm...