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Change your desktop background image - Microsoft Support
You can choose your desktop background and change it at any time. Select Start > Settings > Personalization > Background. In the list next to Personalize your background, select Picture, Solid color, Slideshow, or Windows Spotlight (to see a new image from around the world every day). Note: If you can't select the Windows Spotlight option, your ...
Create a new workbook - Microsoft Support
A workbook is a file that contains one or more worksheets to help you organize data. You can create a new workbook from a blank workbook or a template. By default, a new workbook contains three worksheets, but you can change the number of worksheets that you want a new workbook to contain. You can also add and remove worksheets as needed.
适用于: Microsoft 365 专属 Excel, Excel 2021, Excel 2019, Excel 2016, Excel 2013
Internet Explorer mode in Microsoft Edge - Microsoft Support
To view a website using Internet Explorer mode in Microsoft Edge, use the following steps. Navigate to the website you want to view in Internet Explorer mode. Click the three dots in the upper right corner of the browser window. Select Reload in Internet Explorer Mode. If you are on Microsoft Edge version 92 or earlier select More tools ...
Free up drive space in Windows - Microsoft Support
If your Windows device is running low on storage, here are a few ways to free up some drive space. Select Start > Settings > System > Storage . Turn on Storage Sense to have Windows delete unnecessary files automatically. Select Start > Settings > System > Storage > Cleanup recommendations . Select the temporary files, unused files, files ...
Keyboard shortcut for print screen - Microsoft Support
Depending on your hardware, you may use the Windows Logo Key + PrtScn button as a shortcut for print screen. If your device does not have the PrtScn button, you may use Fn + Windows logo key + Space Bar to take a screenshot, which can then be printed.. To locate your screenshots, open File Explorer from the taskbar. On the side navigation pane, select the Pictures folder, and select Screenshots.
Account help
Signing in with Microsoft. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile. Get Microsoft account help. Manage your personal account from a single dashboard, including payment information, purchases, subscriptions, and more. Go to your dashboard.
Date and time functions (reference) - Microsoft Support
DATE function. Returns the serial number of a particular date. DATEDIF function. Calculates the number of days, months, or years between two dates. This function is useful in formulas where you need to calculate an age. DATEVALUE function. Converts a date in the form of text to a serial number. DAY function.
适用于: Microsoft 365 专属 Excel, Microsoft 365 Mac 版专属 Excel, Excel 网页版, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Change or update email account settings in Outlook for Windows
In Control Panel, search for and open the Mail icon. On the Mail Setup - Outlook window, click Email Accounts. On the Account Settings window, select the account you're trying to troubleshoot and select Change. On the Change Account window, check the Incoming mail server and Outgoing mail server settings against those from your email provider ...
适用于: Microsoft 365 专属 Outlook, Outlook 2021, Outlook 2019, Outlook 2016
Office Help & Training
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Calculate the difference between two dates - Microsoft Support
Use the DATEDIF function when you want to calculate the difference between two dates. First put a start date in a cell, and an end date in another. Then type a formula like one of the following. Warning: If the Start_date is greater than the End_date, the result will be #NUM!.
适用于: Microsoft 365 专属 Excel, Excel 2021, Excel 2019, Excel 2016