It's easy to attach pictures, files, and other items to your Outlook messages. Outlook keeps track of the documents you’ve recently worked on, whether they're stored on your computer or saved in OneDrive (cloud only).

How to lock cells in Excel to protect your data. You can also unlock a range of cells and grant permissions to others to edit.

You can open an Excel workbook and collaborate with others at the same time using co-authoring. This article will explain how.

Microsoft アカウントにサインインするためのエイリアスを使用した Microsoft アカウントのメール アドレスまたは電話番号を変更する方法について説明します。

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.

How to use conditional formatting in Excel to visually explore, analyze, and identify patterns and trends.

Découvrez comment installer un scanneur et l’utiliser pour numériser des images et des documents dans Windows 10.

Accessing Credential Manager. Credential Manager lets you view and delete your saved credentials for signing in to websites, connected applications, and networks.

Use the XLOOKUP function when you need to find things in a table or a range by row. For example, look up the price of an automotive part by the part number, or find an employee name based on their employee ID. With XLOOKUP, you can look in one column for a search term, and return a result from the same row in another column, regardless of which side the return column is on.

Add a delivery and return address to a single envelope, set printer options, adjust for envelope size, and save or print.