Office 2021 remains same major version 16 as previous versions of Office it introduces new dynamic arrays, XLOOKUP features for Excel, full dark mode support and performance improvements. It was released on October 5, 2021, along with Windows 11, and replaced Office 2019. Microsoft Office 2021 (Third perpetual release of Office 16) is a version of the Microsoft Office suite of applications for the Microsoft Windows and macOS operating systems.

Proofing only (11): Hausa, Igbo, isiXhosa, isiZulu, Kinyarwanda, Pashto, Romansh, Sesotho sa Leboa, Setswana, Wolof, Yoruba.

Partial (51): Afrikaans, Albanian, Amharic, Armenian, Assamese, Azerbaijani (Latin), Bangla (Bangladesh), Bangla (Bengali India), Basque (Basque), Belarusian, Bosnian (Latin), Catalan, Dari, Filipino, Galician, Georgian, Gujarati, Icelandic, Irish, Kannada, Khmer, KiSwahili, Konkani, Kyrgyz, Luxembourgish, Macedonian (Republic of Macedonia), Malayalam, Maltese, Maori, Marathi, Mongolian (Cyrillic), Nepali, Norwegian Nynorsk, Odia, Persian (Farsi), Punjabi (Gurmukhi), Quechua, Scottish Gaelic, Serbian (Cyrillic, Bosnia & Herzegovina), Serbian (Cyrillic, Serbia), Sindhi (Arabic), Sinhala, Tamil, Tatar (Cyrillic), Telugu, Turkmen (Latin), Urdu, Uyghur, Uzbek (Latin), Valencian, Welsh.

Full (40): English, Arabic, Bulgarian, Chinese (Simplified), Chinese (Traditional), Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kazakh, Korean, Latvian, Lithuanian, Malay (Latin), Norwegian Bokmål, Polish, Portuguese (Brazil), Portuguese (Portugal), Romanian, Russian, Serbian (Latin, Serbia), Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian, Vietnamese.

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