Convert ODG to SXD

odg to sxd conversion is most likely searched by users looking for a way to get OpenOffice drawings to older format, maybe for the purpose of working with very old documents that have to stay in OpenDocument formats. Some version of OpenOffice/LibreOffice Draw actually might still support saving to SXD format and these are most likely your best option. You will have to look on the Internet for previous versions if yours does no longer support that format.