One of the many features of Excel is being nosy. That's right, you can quickly calculate a persons age as long as you have their birth date.

How to Use a Payroll Calculator in an Excel Spreadsheet. For small business owners who prefer to do their own payroll, one option is to use a Microsoft Excel spreadsheet to keep track of employee pay.

The easy part: Age in days Zee’s need is similar to that of business spreadsheet users who need to calculate the age in days of unpaid invoices. Zee’s date of entry is like the invoice date.

In Microsoft Excel, you don’t need an expression to calculate someone’s age – use Power Query to simplify the process.

How to Calculate the Total Hours Formula in Excel. As a spreadsheet software program, Microsoft Excel has many useful features for a small business's productivity.