Microsoft typically releases perpetual (one-time purchase) versions every three years. The releases surrounding that time frame were: : Released in September 2015. Microsoft Office 2019 : Released in September 2018. What Users Often Mean by "Office 2017"
If you are looking to buy a perpetual license from that era, here are the key features of the two closest versions: Microsoft Office 2016 Microsoft Office 2019 Word, Excel, PowerPoint, Outlook Word, Excel, PowerPoint, Outlook Key Focus Collaboration tools Advanced in-app features & visual tools Excel Standard PivotTables and charts
When people search for "Office 2017," they are usually referring to one of the following: