The more you use your computer, the more you will increase the number of files on your computer. As this continues it can become helpful to see file extensions associated with the files on your system. File extensions are found at the end of a file. File extensions are preceded by a period and are typically two to four characters long. File extensions are often used to identify what type of file it is and what program will open the file. An example is a ".docx" file, which is a Microsoft Word file.
When you open a file, Windows looks at the extension and uses whatever program is associated with that extension to open it. Seeing the file extension can also help you to quickly identify the program needed for the file.
Regardless of how helpful seeing file extensions can be, Windows hides those extensions by default. (Of course it does.) To have Windows show file extensions, follow these quick steps:
This quick change to enable file extensions allows you to know the document type along with giving an idea about what program is needed to open the file.
This tip (13869) applies to Windows 10.
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