JD Sartaintech journalist, PCWorld

JD Sartain is a technology journalist from Boston. She writes for PCWorld, Network World, CIO, & several other tech magazines.

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Excel formulas: The most popular functions and tools, with examples

Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

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Word macros: Four examples to automate your documents

Use these step-by-instructions on Word macros to turn complex procedures into one-click wonders.

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How to create and customize tables in Microsoft Word

Wrangle unruly text into easy-to-read formats using Word 2013's improved tables features.

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Excel percentage formulas: Percentage of total, percent increase or decrease, sales tax and more

Excel percentage formulas can get you through problems large and small every day. We'll walk through several examples, including turning fractions to percentages, and calculating percentage of total, increase, or decrease.

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How to get special characters using Alt key codes or the Word Symbols library

Alt key codes give you access to hundreds of special ASCII characters, from accent marks to tiny icons. We show you how to use the Alt codes and also Word's Symbol library.

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How to create Excel macros and automate your spreadsheets

Excel macros are like mini-programs that perform repetitive tasks, saving you a lot of time and typing. Here's everything you need to know to start programming macros yourself.

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How to use, modify, and create templates in Word

Word templates provide the design consistency that any organization (or individual) needs to look professional. Here's how to use pre-made templates or create your own.

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GIMP vs. Photoshop: We compare the leading free and subscription image editors

Which is the better image and photo editor, GIMP or Photoshop? We compare essential features and declare a winner for each.

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Your Excel formulas cheat sheet: 22 tips for calculations and common tasks

Save this for the spreadsheet jocks in your office—we'd bet even the experts don't know all of these formula tips.

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How to work with Microsoft Word's cursive, script or handwriting fonts

Microsoft Word offers a variety of cursive and handwriting fonts. For this story, we'll discuss the ones available in Windows 10.

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7 free GIMP scripts and plug-ins for filters, brushes, textures and more

Some of GIMP’s greatest assets are the plug-ins and scripts created by numerous independent programmers. We'll find some good ones for you.

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Microsoft ends support for Office 2010: What you can do

Microsoft Office 2010 support ends October 13, 2020. This means no more technical support, no more patches, and no more security updates. Here are your options, some of which are free.

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8 tips to help you get started with Paint.net

DotPDN's Paint.net is a free photo-editing software program with a lot to offer. It has the basic skill set to edit your photographs, it’s intuitive, and it’s easy to use.

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GIMP basics: Best tips and tricks for beginners

GIMP has matured into a truly incredible photo-editing program. If you’re coming by way of Photoshop, however, use these tips to ease the transition.

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Photo editing basics: 6 tips for polishing and perfecting finished images

Make your digital images even better by using photo editing software to polish and perfect the finished images. We cover basic tips for getting started.