Spectrum Spatial Analyst supports the following languages:
cy (Welsh)
cz (Czech)
da (Danish)
de (German)
en (English- default)
en-au (English- Australian)
en-gb (English- British)
es (Spanish)
et (Estonian)
fi (Finnish)
fr (French)
- it (Italian)
ja (Japanese)
nl (Dutch)
pt (Portuguese)
- tr (Turkish)
https://<server>:<port>/connect/analyst/?lang=en-gb