Det var aldri en Office-versjon 4. Versjonene av MS Office er:

- Office 1 (1989)

- Office 3 (1990)

- Office 4.2 (1992)

- Office 4.3 (1992)

- Office 95 (1995)

- Office 97 (1997)

- Office 2000 (1999)

- Office XP (2001)

- Office 2003 (2003)

- Office 2007 (2007)

- Office 2010 (2010)

- Office 2013 (2013)

- Office 2016 (2015)

- Office 2019 (2018)

- Office 2021 (2021)