If Developer tab in Microsoft Office is missing, you can add Developer tab in Word, Excel, etc. via Settings, Group Policy, Registry Editor.

The Draw tab is not on Excel's ribbon by default. Learn how to enable, add and use the Draw tab and the various drawing tools in Excel.

How to calculate return on investment (ROI), the money an investment made relative to its cost, in Microsoft Excel.

Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.