Common file name extensions in Windows - Microsoft Support
In File Explorer under View, in the Show/hide group, select the File name extensions check box. Below is a list of common Windows file name extensions and formats. Learn what file name extensions are, which extensions are common in Windows, and how to view them in File Explorer.
A file is in a different format than its extension indicates in Excel ...
A file is in a different format than its extension indicates in Excel - Microsoft Support. Excel for Microsoft 365 Excel for the web Excel 2021 Excel 2019 Excel 2016. When you open a file in Excel, you get an message that the file name extension doesn't match the actual file format.
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
View hidden files and folders in Windows - Microsoft Support
Open File Explorer from the taskbar. Select View > Show > Hidden items. Learn how to show hidden files, folders, and drives in Windows.
Show libraries in File Explorer - Microsoft Support
Windows 10. To show libraries in File Explorer, select the View tab, and then select Navigation pane > Show libraries.
Show libraries in File Explorer - Microsoft Support
Windows 10. To show libraries in File Explorer, select the View tab, and then select Navigation pane > Show libraries. Show libraries in File Explorer.
Add, turn off, or remove extensions in Microsoft Edge
In Microsoft Edge, select Extensions located to the right of your browser address bar, then select Manage extensions. Select the toggle next to the extension you want to turn off. Remove an extension from Microsoft Edge. To remove any extension, choose one of the following methods:
File types supported for previewing files in OneDrive, SharePoint, and ...
You can preview hundreds of file types in Microsoft Teams, OneDrive, and SharePoint, without installing the application used to create the file. The previews and thumbnail images appear in the web view and for customers using Files On-Demand in Windows 10.
Applies To:
SharePoint Server Subscription Edition, SharePoint in Microsoft 365, Microsoft 365 admin, OneDrive (work or school), OneDrive (home or personal), OneDrive for Windows
Open XML Formats and file name extensions - Microsoft Support
What are the XML file name extensions? By default, documents, worksheets, and presentations that you create in Office are saved in XML format with file name extensions that add an "x" or an "m" to the file name extensions that you are already familiar with.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel 2021, Word 2021, PowerPoint 2021, Office 2021, Excel 2019, Word 2019, PowerPoint 2019, Office 2019, Excel 2016, Word 2016, PowerPoint 2016, Office 2016, Excel 2013, Word 2013, PowerPoint 2013, Office 2013
File Formats Supported by Windows Media Player Versions 6.0 and Later
Windows Media Player 6.0. Windows Media formats. File name extensions: .asf, .asx, .avi, .wav, .wma, .wax, .wm, .wmv, .wvx. RealAudio and RealVideo (version 4.0 or earlier) File name extensions: .ra, .ram, .rm, .rmm. Moving Pictures Experts Group (MPEG) File name extensions: .mpg, .mpeg, .m1v, .mp2, .mpa, .mpe.