How to Show File Extensions in Windows 11

How to Show File Extensions in Windows 11

Know exactly what you're clicking. Learn how to display file extensions in Windows 11 and avoid costly mistakes.

By Rodger Mansfield, Technology Editor

October 15, 2025

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Have you ever opened a file thinking it was a harmless document, only to realize it was something else entirely?

That tiny “.exe” or “.pdf” at the end of a filename isn’t just decoration. 

It’s the digital equivalent of a food label. 

And yet, Windows 11 hides these extensions by default, leaving users to guess what they’re dealing with. 

For business users, educators, and anyone juggling dozens of files a day, that’s a recipe for confusion or worse, a security risk.

Here's a Cool Tip:  Show File Extensions in Windows 11.

🚨 WARNING: Your PC Hides the Files That Can Give You Malware - OCT Newsletter 10-15-2025

 WARNING: Your PC Hides the Files That Can Give You Malware - OCT Newsletter 10-15-2025

In the latest Windows Wednesday One Cool Tip Newsletter, we focus on enhancing your digital security by showing file extensions in Windows 11. 

Knowing file types is crucial for avoiding malware and organizing files effectively. 

We also touch upon recent scams affecting Medicare and job seekers. Stay informed and protect yourself. 

•  Medicare & ACA Scams.
•  Online Job Scams Linked to Forced Labor Rings.
•  Make It a Great Week! (AI-Powered Prompt).
•  Cool ChatGPT AI Prompt of the Day: Clean Recipe.
•  Show File Extensions in Windows 11.
•  Pin Folders to the Windows Start Menu.
•  Find and Lock Your PC Remotely.
•  File Copy Feature in Windows 11.

Click HERE for the Newsletter

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Rodger Mansfield, a seasoned technology expert and editor of OneCoolTip.com, transforms complex tech into practical advice for everyday users. His Cool Tips empower readers to stay productive, secure, and one step ahead in the digital world.

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#DigitalSecurity #Windows11 #TechTips #Scams #FileManagement 

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Cool Deals - October 15, 2025

Cool Deals - October 15, 2025

Help support One Cool Tip. Use this Amazon link when you shop online.

• 🖱️ Logitech MX Master 3S Mouse: Ergonomic, customizable, and perfect for navigating File Explorer with precision. Check it out on Amazon!

• 🖥️ Samsung 32" Smart Monitor M8: Ideal for multitasking and file management with crisp resolution and built-in apps. Check it out on Amazon!

• 📁 Seagate Portable 2TB External Hard Drive: Keep your organized files backed up and secure. Check it out on Amazon!

 

Read the Cool Tip: How to Show File Extensions in Windows 11

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Meta Vibes: Meta’s New Playground for AI-Generated Videos

Meta Vibes: Meta’s New Playground for AI-Generated Videos

Meta just dropped Vibes, a dedicated feed inside the Meta AI app (and at meta.ai) where every video is AI-generated. You can browse, remix, or build videos and share them across Facebook/Instagram. This Cool Tip cuts through the hype to show what’s real, what’s experimental, and what’s useful (or not) for everyday creators.

By Rodger Mansfield, Technology Editor, 

October 14, 2025

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Imagine opening your Meta AI app and seeing a Reels-style feed but none of the content is human-shot. 

Instead, every video is born from a prompt. 

No actors, no live filming, just AI weaving visuals, music, and style. 

Here's a Cool Tip:  Try Meta Vibes.

The feed feels like wandering through an art gallery run by a robot. 

Some clips were oddly beautiful; most were gloriously bizarre. 

It’s intriguing, weird, slightly off-balance, and worth a closer look for creators, social strategists, and anyone watching where AI is pushing the limits of social media content.

The Last Time You Waited a Week to See Your Vacation Photos

 The Last Time You Waited a Week to See Your Vacation Photos

More Vintage Tech

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Cool Deals - October 14, 2025

 Cool Deals - October 14, 2025

Help support One Cool Tip. Use this Amazon link when you shop online.

Look at these Cool Products:

 Elgato Stream Deck XL Customize your video workflow with programmable keys, perfect for creators. Overall Pick! Save 15% Check it out on Amazon!

 Joby GripTight ONE GorillaPod Stand Flexible tripod for mobile creators, ideal for shooting reaction clips or tutorials. Overall Pick. Check it out on Amazon!

 Sony WH-1000XM5 Noise Canceling Headphones Block distractions while editing or watching AI videos. Check it out on Amazon!

Read the Cool Tip: Meta Vibes: Meta’s New Playground for AI-Generated Videos

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Red Squiggles Vanish

 

Red squiggles vanish,

Copilot whispers “All fixed,”

Clean words, no regrets.

One-Click Proofreading in Word for the Web with Microsoft 365 Copilot

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⚙️ Boost Work Efficiency with Better Prompts - OCT Newsletter 10-13-2025

 Boost Work Efficiency with Better Prompts - OCT Newsletter 10-13-2025

Stay informed with the latest edition of the One Cool Tip Newsletter. 

•  Scam Alert.
•  Qantas Data Breach Warning.
•  AI Prompt for Productivity.
•  Image Prompt of the Day.
•  OpenAI Prompt Packs.
•  Read Aloud Feature.
•  Advanced Voice Mode.
•  New Windows App.

We discuss crucial topics like the recent sextortion scam targeting email users and the Qantas data breach. 

Additionally, explore OpenAI's new Prompt Packs designed to enhance productivity across various professions. 

Subscribe for daily tech insights and actionable advice. 

Click HERE for the Newsletter

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Do you have a Cool Tip or question? Email us at onecooltip.com@gmail.com

Rodger Mansfield, a seasoned tech expert, is the mastermind behind www.OneCoolTip.com where he serves as both writer and editor. With a keen eye for simplifying complex tech, Rodger delivers practical advice that empowers readers to navigate the digital world with confidence. Dive into www.OneCoolTip.com for a treasure trove of savvy tips and tricks that keep you one step ahead in tech.

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OpenAI Prompt Packs: ChatGPT for Every Role at Work

OpenAI Prompt Packs: ChatGPT for Every Role at Work

OpenAI’s new Prompt Packs give professionals in every field a running start. These curated prompt collections help people in sales, marketing, HR, and other jobs work faster and think smarter with ChatGPT.

By Rodger Mansfield, Technology Editor

October 13, 2025

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Imagine if every job came with its own guidebook for using ChatGPT. 

Here's a Cool Tip:  Try the OpenAI Prompt Packs.

OpenAI Prompt Packs provide ready-to-use prompts designed for real workplace roles like engineers, marketers, and managers. 

Each pack shows what’s possible and helps you produce results more quickly.

The Prompt Packs are available through OpenAI Academy. 

Instead of trying to figure out how to phrase your request, you can start from prompts that already work.

Feature Explanation

Learn with NotebookLM: Smarter Study Tools for Students and Professionals

Learn with NotebookLM: Smarter Study Tools for Students and Professionals

Google's NotebookLM recently added new, personalized features that instantly generate citable flashcards, quizzes, and even AI-guided tutoring, transforming passive document review into efficient, active knowledge retention.

By Rodger Mansfield, Technology Editor

October 12, 2025

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Do you need to study?

Here's a Cool Tip:  Learn with NotebookLM.

Google’s NotebookLM just got a major learning upgrade. 

It can now generate flashcards, quizzes, and reports from your uploaded files, act as a personal tutor through the new Learning Guide, and even provide audio summaries you can listen to on the go.

If you’re studying, teaching, or mastering new material at work, NotebookLM makes learning interactive and fast.