While some file formats can't be changed, there are a lot that are. Here's how to change file formats in Windows 11 and what steps you can take to simplify the task.

On Windows 11, you can change the format of a file in multiple ways through File Explorer, Command Prompt, and from a compatible application. In this guide, I'll show you how.

If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

Sometimes, when you try to open a Word file it fails to open and displays the following message – Word cannot open the file because the file format does not match the file extension. This can be ...

Normally, if you change a file’s extension in Windows, it doesn’t do anything positive. It just makes the file open in the wrong programs that can’t decode what’s inside. Ho… ...

PNG, short for Portable Network Graphics, is a popular and high-quality graphic file format. The PNG format is lossless and supports transparency.

Apps that open files In macOS, you can change what app opens a specific file type from the file itself. Right-click a file that you want to change the default app that opens, and select Get Info.

CSV files are special text files that are quite common when dealing with spreadsheets. Here's how to open and make them.

How to Change the Way You Open Files in Google Chrome. The default applications your computer uses to open files can be changed if you prefer to use something other than what is currently set.

How to open a .numbers file on a Windows PC To get your .numbers file into a recognisable state for Windows you’ll first need to open it in the iCloud version of Numbers.