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.

You can create a file without a File Type Extension in Windows 11/10 by carefully following the steps laid down in this post.

An S-corp extension gives you six additional months to file a federal tax return, so you have until September 15. Although a file extension for an S-corp gives you more time to complete and submit ...

When it comes to converting file extensions on your iPhone, don't worry about downloading a third-party app when you can make the changes yourself.

Learn how to change, restore, set or fix change file associations and extensions in Windows, using Control Panel or Types free tool.