Dennis O'Reilly began writing about workplace technology as an editor for Ziff-Davis' Computer Select, back when CDs were new-fangled, and IBM's PC XT was wowing the crowds at Comdex. He spent more ...

Have you ever spent hours perfecting your Excel spreadsheet, only to watch your carefully crafted formatting fall apart the moment you insert a new row? It’s a maddeningly common issue for Excel users ...

When I walk round companies to help those who have attended my courses, and those who have not, I do find that they sometimes do things the very long way round. For instance, I watched someone ...

Hello, I've recently been developing an ExcelDNA project in which I am trying to use a User-Defined Function from within a conditional formatting rule. However, I've run into some odd behavior that I ...

Whenever you create a new Excel document, you are opening what is called a "workbook." Each workbook can have multiple worksheets. If your small business sells fruit, you might have an Excel workbook ...