Your summarizations, analyses, projections, reports and so on, are only as good as your data. It’s important that you use every resource available to protect the validity of the data, which means you ...

Learn advanced filtering in Excel with a criteria area, OR and AND logic, and copy results to isolate the right rows fast.

Spreadsheets are a nerd’s data-driven dream. For most regular people, though, they’re a complicated mess. Fortunately, they don’t need to be. Here’s how to bend data to your will with Microsoft Excel ...

Drop-down lists in an Excel sheet can greatly facilitate data entry. Here's a look at how to use Microsoft Excel's data validation feature to create handy lists within your worksheets. An Excel ...

Spreadsheet software is supposed to make life easier, not torture you with endless hours of data entry. Before you curse Excel and wish that you were working back in the good old days of paper ledgers ...

When you start fresh in Microsoft Excel, you have two options to enter data – horizontal and vertical. But after entering vertical or columnar data, it can lead to errors to try to retype or drag cell ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Return on investment (ROI) measures the amount of ...