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Excel Workbooks: Three-dimensional workbooks and other number-crunching powers

We'll dive deep into Excel workbooks in this guide, starting with the basics and diving straight into powerful three-dimensional workbooks.

Android 8 Oreo: How to use picture-in-picture mode

Android Oreo finally makes video playback more friendly with picture-in-picture (PiP) mode on phones and tablets.Here's how it works.

How to install macOS High Sierra

Apple’s update to macOS is now available and ready. Here are the instructions for getting it on your Mac.

Microsoft Excel: Why your spreadsheet is so slow

When Microsoft Excel complains it "cannot complete this task with available resources," or it's "Out of memory," here's what to do.

How to tell which iPad model you have

From a distance, you might not be able to tell two different iPad models apart. But it's easy to tell which one you have...if you know where to look.

How to set up Steam Link and play PC games on your TV

The Steam Link bridges the gulf between gaming on your computer and gaming on your couch.

Crashplan alternatives: What home users can do, from staying put to exploring other services

Crashplan is ending its home-user service on October 23, 2018. Options include upgrading to Crashplan's business tier, or seeking alternative services. We'll walk you through the choices.

iPhone to Android: The ultimate switching guide

Ready to make the move from iOS to Android? Here's everything you need to successfully switch from an iPhone to a Samsung Galaxy, Google Pixel or any other Android device.

Twitch: How to stream your games

Streaming your games on Twitch requires some extra software on PCs. Here's how to get started.

Speed up Windows 10: Tips for a faster PC

Your Windows PC too slow? Here are nine speed tips to give your PC a performance boost without spending a dime.

Galaxy S8 battery life tips: How to control battery drain

Is your Samsung Galaxy S8 or S8+ draining too fast? These battery-saving tips can help you get a few more hours of use.

How to use Miracast to mirror your device's screen wirelessly on your TV—even 4K

Everything you need to know to figure out device support between newer and older devices, and setting it up with Windows or Android devices.

How to stream media from your PC to your HDTV over Wi-Fi

Do you want to stream TV and movies from your PC to your TV? Here's our PC-to-TV media streaming guide.

How to install a graphics card

Installing a new graphics card can give your PC a major performance boost. Here's how to do it.

Killing Cortana: How to disable Windows 10's info-hungry digital assistant

Cortana, Microsoft's supremely useful digital assistant, is a highlight Windows 10 feature—but not everyone will appreciate the amount of personal information she demands to be helpful. Here's how to disable Cortana in Windows 10.