Diarmuid Early won first place in the 2025 Microsoft Excel World Championship. He has some pointers for using Excel at work.

Microsoft Windows may get all the press coverage, but when you want to get real work done, you turn your attention to the applications that run on it. And if you use spreadsheets, that generally means ...

I once made money moonlighting as a VisiCalc and Lotus 1-2-3 instructor before Steve Ballmer ever typed “=sum(Profits)” in an Excel 1.0 spreadsheet cell. And a friend and former colleague from my ...

Microsoft Excel spreadsheets hold more than a million rows of data and automate number crunching, but they can do so much more. Excel’s simple interface lends itself to uses well beyond those that its ...

Excel macros let you automate repetitive tasks for substantial time savings. Here’s how to put them to work for you. If you regularly work with Excel spreadsheets, you probably find yourself repeating ...

Excel has a number of formulas that enable you to count the time between two dates. You can specify that you would like to count the difference in hours by adding a time specifier to your formula or ...

Excel makes quick work of tracking time. With the right formatting, formula and dependent time values, you can return the hours worked for a given day, week, month and so on. If all you’re doing is ...