If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide.

Import a text file by opening it in Excel. You can open a text file that you created in another program as an Excel workbook by using the Open command. Opening a text file in Excel does not change the format of the file — you can see this in the Excel title bar, where the name of the file retains the text file name extension (for example, .txt or .csv).

Um Unterstützung in Outlook.com zu erhalten, klicken Sie hier, oder wählen Sie in der Menüleiste Hilfe- aus, und geben Sie Ihre Abfrage ein. Wenn ihr Problem durch die Selbsthilfe nicht behoben werden kann, scrollen Sie nach unten zu Benötigen Sie weitere Hilfe? und wählen Sie Ja aus.. Um uns in Outlook.com zu kontaktieren, müssen Sie sich anmelden.

To add another account to OneDrive on your computer. If you already have a personal OneDrive account set up, you can only add work or school accounts.

Important: Copilot in Outlook only supports work or school accounts, and Microsoft accounts using outlook.com, hotmail.com, live.com, and msn.com email addresses at this time. Any Microsoft account using an account from a third-party email provider, such as a Gmail, Yahoo, or iCloud, can still use Outlook, but won't have access to the Copilot features in Outlook.

USB-C overview. With a USB-C connection, you can charge your Windows 11 PC, and you can also connect to other USB Type-C devices such as mobile phones, docking stations, display adapters, and other devices that have a USB-C port.

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Note: To let a user enter percentages, for example 20%, select Decimal in the Allow box, select the type of restriction that you want in the Data box, enter the minimum, maximum, or specific value as a decimal, for example .2 , and then display the data validation cell as a percentage by selecting the cell and clicking Percent Style in the Number group on the Home tab.

Cloud files can exist locally on the disk or be available online only. To choose the conditions for when inactive files are made online only, under Content will become online-only if not opened for more than: choose your preferred amount of time. Note that starting in Windows 11, version 22H2, the default for OneDrive cloud files is to make files online-only if not opened for more than 30 days.

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。