Youll see this on the far right in the Symbols group. Now however even when I select specific text the Editor runs through the entire document. While your equations should still display correctly in order to edit them you would need to either.
The equation converter is only available for Microsoft 365 or Office 2019.
This brief tutorial aims to serve as an introduction to the basics of using MS Words Equation Editor. Insert an equation with Equation Editor On the Insert tab in the Text group click Object. Although you can also click on Equations under the Insert Tab to get it. To open the Equation Editor and access the Equation toolbar.