Securely sign in to access your Microsoft account and manage emails, calendars, and other services efficiently.

Microsoft To Do helps you organize tasks, manage lists, and stay productive with seamless integration across devices and platforms.

No account? Create one! Can’t access your account?

Customize and configure Office deployment settings for your organization with the Office Customization Tool in Microsoft 365 Apps …

Simplify Office deployment with Microsoft 365 Apps admin center to create, modify, and export configurations tailored to your …

Sign in to access your Microsoft Excel account and collaborate online with others using Office 365 tools.

Access and manage your Office 365 account, users, and settings from the admin portal.

How to start add-ins directly within Office Online You can launch any add-in within Office Online. Click here for step by step instructions

Office.com 在多个国家/地区可用。请选择您的语言首选项。

Use Microsoft Forms to easily create online surveys, forms, quizzes and questionnaires. AI powered, free survey tool from Microsoft.