Learn how to open an XML File in Excel, Word, Chrome, and Edge on a Windows computer using the methods mentioned in this post.

Apple's Numbers spreadsheet for Mac, iPhone, and iPad, is not as powerful as Microsoft Excel, but most users will be hard-pressed to find its limitations — and will immediately see how much easier ...

Learn how to change the default file format for saves in Word, Excel, and PowerPoint, so that you do not need to change it every time.

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

The simplest form of regression in Python is, well, simple linear regression. With simple linear regression, you're trying to ...

Use our handy calculator to determine how much your stash of Southwest Rapid Rewards points is worth and decide which flights are high-value redemptions.

Year to date (YTD) refers to the period beginning on the first day of the current calendar or fiscal year and extending up to the current date.

When you're reformatting a drive, memory card, or flash drive you need to pick a file format. If you see FAT32, exFAT, and NTFS, but don't know which one to pick, here's what you need to know.