Old StarOffice drawings (.sda) can still be opened in office suites based on Open Document Format schemes, such as the original StarOffice itself, or newer suites like LibreOffice OpenOffice.org, or similar. All of these suites should be capable of export or saving .sda files as .odf files.
Convert OpenOffice.org drawing file to Open Document Interchange Format (ODIF).
We have found 2 software records in our database eligible for .sda to .odf file format conversion.
Microsoft Windows software - convert sda to odf on Windows
Older multi-platform office productivity suite
Convert from sda 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 sda to odf. 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 sda to odf on OS X
A full-featured set of office applications for Mac OS X