A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
First, take a close look at the tabs displayed on the Ribbon to see if this symbol 》follows the last visible tab name. If so it means there are hidden tabs due to the window being too narrow to display all tabs. Either widen widen the window or click that symbol to open a list of hidden tabs.
If the Developer tab actually is missing...
It sounds like you're looking at instructions that pertain to Excel for Windows. In Excel for Mac you can either:
- Go to Excel> Preferences> View then check the box at the bottom of the Preferences pane, or
- Go to Excel> Preferences> Ribbon & Toolbar then on the Ribbon page scroll to the bottom of the Main Tabs list & check the Developer box.