Can I convert odg to vsdx

Originally imported the vsdx file into Draw. Completed my work with the file.

Afaik - No, you can’t convert .odg to .vsdx (there is only an import filter but no export filter)

Today you can’t save to VSDX format. There is an old enhancement https://bugs.documentfoundation.org/show_bug.cgi?id=68474 about it