备注 COUNTA 函数计算包含任何类型的信息（包括错误值和空文本 ("")）的单元格。例如，如果区域中包含的公式返回空字符串，COUNTA 函数计算该值。COUNTA 函数不会对空单元格进行计数。

Add-ins provide optional commands and features for Microsoft Excel. By default, add-ins are not immediately available in Excel, so you must first install and (in some cases) activate these add-ins so that you can use them. Some add-ins are built in to Excel, such as Solver and the Analysis ToolPak. Some other add-ins are available from the Download Center, and must first be downloaded and ...

若要暂时关闭 Windows 安全中心中的 Defender 防病毒保护，请按照以下步骤操作。 请记住，关闭该功能后，你的设备可能易受威胁。

随时了解 Microsoft Complete 购买设备时获取 Microsoft Complete 保护计划。 所有 Microsoft 设备和配件具有标准的有限保修。 Microsoft Complete 提供硬件扩展和意外损坏服务。

After an email message is sent in Outlook 2013 or Outlook 2016, you can check it later to read it again or resend it.

Microsoft Defender è una nuova app di sicurezza che ti aiuta a proteggere te e la tua famiglia su tutti i tuoi dispositivi; Windows, Android, Mac e iOS.

Verwenden Sie Einstellungen in Windows 10, um Standard-Apps und -programme zu ändern.

Approvals in Microsoft Teams is a way to streamline all of your requests and processes with your team or partners. You'll be able to create new approvals, view the ones sent your way, and see all of your previous approvals in one place.

Learn about the features and see diagrams of Surface Pro (5th Gen).

Enter a name for the database, select a location, and then select Create.. If needed, select Enable content in the yellow message bar when the database opens.