View, manage, and install add-ins for Excel, PowerPoint, and Word
View installed add-ins. Select File > Get Add-ins. Alternatively, you can also view your add-ins directly from the Home tab by selecting Add-ins. You can directly install add-ins from this page or select More Add-ins to explore. In the Office Add-ins dialog, select My Add-ins tab.
Repair an Office application - Microsoft Support
If a Microsoft 365 application such as Word or Excel isn’t working correctly, sometimes restarting it will fix the problem. If that doesn’t work, you can try repairing it. When you’re done, you might need to restart your computer.
View or change the properties for an Office file - Microsoft Support
View or create custom properties for the current file. Custom properties are properties that you define for an Microsoft 365 document. You can assign a text, time, or numeric value to custom properties, and you can also assign them the values yes or no. You can choose from a list of suggested names or define your own.
Excel video training - Microsoft Support
A list of Excel training, from entry level to advanced skills, plus templates and other resources.
Open file links directly in Office desktop apps - Microsoft Support
This feature works for links to Word, Excel, or PowerPoint files, stored on OneDrive or SharePoint, that you click in Word, Excel, Outlook, or PowerPoint for Microsoft 365 on Windows or Mac. Once a user turns this feature on, it will apply to all three apps - …
Collaborate on Excel workbooks at the same time with co-authoring
You and your colleagues can open and work on the same Excel workbook. This is called co-authoring. When you co-author, you can see each other's changes quickly—in a matter of seconds. And with certain versions of Excel, you'll see other people's selections in …
Get notified when members of your team update your shared file
2019年4月4日 · If you share a slide deck in PowerPoint for Microsoft 365 or PowerPoint for the web, and other people make changes to the file, you'll be notified with a small banner that lets you know who has made changes to your presentation while you were away.
Install Office updates - Microsoft Support
If Update Options is missing and there's only the About button, you either have a volume license install or your company is using Group Policy to manage Office updates. Try Microsoft Update or contact your company help desk. To download an update manually, see Office Updates.
Digital signatures and certificates - Microsoft Support
A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered. The following is an example of a signature line. Top of Page.
Get started with Python in Excel - Microsoft Support
To begin using Python in Excel, select a cell and on the Formulas tab, select Insert Python. This tells Excel that you want to write a Python formula in the selected cell. Or use the function =PY in a cell to enable Python.
Sum values based on multiple conditions - Microsoft Support
You’ll find more in the SUMIFS function article. If you want to create a total value for just one range based on a value in another range, use the SUMIF function. Sum values based on one or more conditions by using the SUMIFS function in a formula.