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.

The default setting for Windows is to not display a file's extension. Therefore, when viewing files in Windows you would only see the portion of the filename that precedes the last period in ...

Keep reading to learn how it's done. Since iOS 11, Apple's Files app has made file management a more realistic proposition on iPhone and iPad.