The Adobe Analytics API can be used to import and export segments:
GitHub - AdobeDocs/analytics-1.4-apis: Documentation and helpful
resources for calling the Analytics 1.4 Apis If you go to the Swagger UI
documentation on that page, you can see the different requests. I would
use Segments.Get and add "definition" as one of the fields displayed.
Currently, segments are loaded in the "current" report suite, not in the
original report suite that they were created in. This creates confusion
when later editing segments because the user has to remember which
report suite that segment belonged to and dimensions in one report suite
may not be the same in another report suite.