Microsoft hides file extensions in Windows by default even though it's a security risk that is commonly abused by phishing emails and malware distributors to trick people into opening malicious files.

Learn how to hide or show file extensions in Windows 11/10 File Explorer via Folder Options, Registry, Group Policy or CMD. It is better to set Windows to show them.

Spotlight extensions enhance third-party app searches, letting you look up more app-specific content. Here's how to enable or disable the extensions in macOS.

How do I enable file extensions in Windows 10? The methods to enable file extensions in Windows 10 are the same as in Windows 11 but the steps are a bit different in both of these operating systems.

With the release of iOS 16, however, that all changed, and Apple quietly added an option to show file extensions in the folder window. The following steps show you how to enable it.

Need to look at invisible files and show hidden file extensions in Windows? Here's how to reveal them.

Apple's brand-spanking-new Safari 5 release has support for extensions baked in, but the expected web gallery of extensions isn't quite open yet. St ...