Learn how to change the settings that enable or disable macros in Excel, and more. Change the macro security settings to control which macros run when you open a workbook.

Get troubleshooting steps for when you can't sign in to the Xbox app.

Describes an update for Universal C Runtime (CRT) in Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows 8, Windows RT, Windows Server 2012, Windows 7 SP1, Windows Server 2008 R2 SP1, Windows Vista SP2, or Windows Server 2008 SP2.

Discover the benefits to co-authoring documents in your organization and learn about versioning, checkin/checkout, and mixed Office environments.

Surface デバイスと Windows を更新する。 最新のドライバーとファームウェアの更新プログラムをダウンロードして、Surface デバイスのパフォーマンスを維持します。

Set up Outlook for Android for the first time. Open the Outlook for Android app on your Android device.

Better integration and interoperability of business data Using Open XML Formats as the data interoperability framework for the Office set of products means that documents, worksheets, presentations, and forms can be saved in an XML file format that is freely available for anyone to use and to license, royalty free.Office also supports customer-defined XML Schemas that enhance the existing ...

This article was written by the product team that created Microsoft Outlook for the best possible reason — our customers asked. Outlook is designed to be used by a wide audience with many work needs and styles.

Want to add a padlock to your email messages? You can use S/MIME in Outlook on the web to increase the security of messages. A digitally encrypted message can only be opened by recipients who have the correct key.

Check spelling in a message, or set the Always check spelling before sending option to check spelling automatically.