When you open certain file types in Windows 7 or Vista, such as an Outlook email attachment, Windows displays a warning message about opening a file from an untrusted source. If you trust the sender ...

Microsoft uses file associations to set default programs for opening different file types on all its operating systems. As a result, when you open a file, be it text, image, or document, on your ...

Do you want to open a file type or link with a specific app? Here's how to change the default app settings on Windows 11. When you purchase through links on our site, we may earn an affiliate ...

Want to make sure photos open in Photoshop, web pages open in Chrome, and text files open in Word? You can control which app launches when you open a file on a Windows PC or Mac. Here's how to set ...

Every program uses and, in some cases, produces files with a specific file extension. A file can only be opened by a program with support for its particular extension, including MOD and MOI files, ...

Every day, we come across different types of file extensions while working on a computer. The file extensions tell an operating system about the type of file so that the OS could select the right app ...

Each document that you have on your Mac is associated with a default application which macOS uses to open the file whenever you double-click on its icon in Finder. Sometimes you may have a legitimate ...

Is a file or process being blocked by Windows Defender on Windows 11/10? You can add a file type or process exclusion to Windows Security via GPEDIT or Settings. While Windows Security does a great ...

You can open or import a surprising number of file formats into Microsoft Word. Not to be confused with file formatting, which—in most programs—refers to the design of a page, file formats are little ...