How can I prevent users from connecting to a USB storage device?
To assign a user or group Deny permissions to the Usbstor.pnf and Usbstor.inf files, follow these steps: Start Windows Explorer, and then locate the %SystemRoot%\Inf folder. Right-click the Usbstor.pnf file, and then click Properties. Click the Security tab.
Recover lost files on Windows 10 - Microsoft Support
Use this app to try to recover lost files that have been deleted from your local storage device (including internal drives, external drives, and USB devices) and can’t be restored from the Recycle Bin.
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
Excel video training - Microsoft Support
Make your first PivotTable. Download template > Get more out of PivotTables. Download template > Other training. Templates. A list of Excel training, from entry level to advanced skills, plus templates and other resources.
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2016
Windows 10 and Windows Server 2019 update history
Windows 10 Release Information. Windows lifecycle fact sheet. Updates for Windows 10, version 1809. On the left side of this page, you’ll find a list of all the updates released for this version of Windows. You can also find more information about releases and any known issues.