Glenn FleishmanSenior Contributor, Macworld

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Glenn Fleishman is the author of dozens of books, including his newly released A Practical Guide to Networking, Privacy, and Security in iOS 10, a book that has information and step-by-step advice on connecting to and managing networks, and securing your data and your privacy. He's a senior contributor to Macworld, where he writes the Private I and Mac 911 columns and hosts the Macworld podcast, and contributes regularly to many periodicals.

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How to split a raw+JPEG photo file into its separate parts

You can use Apple Photos to separate a raw file form its JPEG.

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How to adjust the spell-check language in macOS

A reader has spelling corrections appearing as if he’s typing in French.

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Cable Matters 72W 4-Port USB Charger with USB-C Power Delivery review: High-wattage USB-C charger delivers the goods

A compact charger from Cable Matters can power and recharge a MacBook or MacBook Pro and mobile devices, too.

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No VPNs in China: Why Apple withdrew VPN apps from its China App Store

A small firestorm erupted after Apple removed VPN software from its App Store in China, which might provide a template for other countries to follow.

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Tempted to muck about in media library folders for Apple apps like Photos? Don't do it

Mac spps like Photos store files and data in libraries. Mess with them, and the app may not work.

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Wireless mesh networks: Everything you need to know

There are genuine benefits behind the hype for this Wi-Fi technology.

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Best Power Delivery 2.0 USB-C battery packs

A long-awaited new category of USB battery packs can deliver 30 watts of power, allowing fast charging.

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RAVPower 26800mAh Portable Charger review: Compact, affordable battery delivers USB-C laptop charging

It works perfectly, but it’s just a bit slower than its closest competitor.

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Anker PowerCore+ 26800 PD review: Quickly recharge your USB-C MacBook or MacBook Pro

A high-capacity battery with USB Power Delivery 2.0 can charge at 30W while you're using a MacBook or MacBook Pro.

When you can’t type a certain character on your Mac, here’s how to troubleshoot it

It must be frustrating to find that a key on your keyboard sometimes doesn't work.

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How to better control the size of video exports on your Mac

Modern versions of QuickTime and iMovie don't provide much control over how big you want your video file size to be. You need to use a free third-party app.

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Google Backup and Sync review: Works best for those already tied into Google's ecosystem

You probably shouldn’t use t Google Backup and Sync as your primary backup, but it might fit some people’s purposes.

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Will new HEVC and HEIF formats work in older versions of macOS and iOS?

Worries abound about Apple’s format shift, but compatibility is the name of the game.

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Update to iOS 10.3.3 now: Apple patches serious Wi-Fi exploit

Apple’s iOS 10.3.3 patch fixes Broadpwn, a vulnerability that can be exploited over Wi-Fi.

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What to do when a calendar isn’t syncing to your Mac

A reader can’t get one of their Apple devices to sync properly