Imported from UserVoice
Author: Swordfish Training
LibreOffice has a good Bengali (also called Bangla) spell check. I’m sure someone with the right skill set could port the LibreOffice version to OnlyOffice.
The lack of this feature prevents me from recommending OnlyOffice to all my friends in Bangladesh. The user interface does not need to be urgently ported. Most people here use English user interfaces on their software.