With programs based on OpenOffice document architecture it should very easy to convert drawings in older SXD format to newer SDA format.
Convert OpenOffice/StarOffice drawing file to OpenOffice.org drawing file.
We have found 4 software records in our database eligible for .sxd to .sda file format conversion.
Microsoft Windows software - convert sxd to sda on Windows
Older multi-platform office productivity suite
Convert from sxd file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned sxd to sda. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert sxd to sda on OS X
A full-featured set of office applications for Mac OS X
Multiplatform software - convert sxd to sda on any platform
Graphic editor for diagrams and simple graphics from OpenOffice.org suite
Graphic and diagram software from LibreOffice suite