Protect a Word document with a password - Microsoft Support
Go to File > Info > Protect Document > Encrypt with Password. Type a password, press OK, type it again and press OK to confirm it. Save the file to make sure the password takes effect.
用密碼保護 Word 文件 - Microsoft Support
你可以透過為文件設定密碼來控制存取。 密碼以大小寫區分，最長可達15個字元。 建立一個強而有力的密碼，最好是你能輕易記住的。 但如果你可能忘記，也應該把副本放在安全的地方。 如果你遺失或 …
Proteggere un documento di Word con una password
Passare a File > Info > Proteggi documento > Crittografa con password. Digitare una password, premere OK, digitarla di nuovo e premere OK per confermarla. Salvare il file per assicurarsi che la …
Protect an Excel file - Microsoft Support
How to protect an Excel file using a password to prevent unwanted access to your data.
Require a password to open or modify a workbook
Caution: When you create a password for a workbook, write down the password and keep it in a secure place. If you lose the password, you can't open or gain access to the password-protected workbook.
Change the password for an Outlook Data File (.pst)
For more information about changing your email password in Outlook, see Change or update your email password. Caution: If you set a password on your Outlook Data File (.pst) and forget the password, …
Video: Use expiration dates and passwords - Microsoft Support
In your browser, select a file or folder. Select Share. Select Link settings. Set an expiration date. Set a strong password. Select Apply. Type names, email addresses, add a message and select Send. Or …
My Outlook Data File (.pst) password doesn’t work
If you have a password protected Outlook Data File (.pst) and didn’t select the Save this password in your password list check box, when you open the file, you are prompted for the password.
Change or remove workbook passwords - Microsoft Support
Open the workbook that you want to change or remove the password for. On the Review tab, click Protect Sheet or Protect Workbook. Click Unprotect Sheet or Protect Workbook and enter the …
Protect a workbook - Microsoft Support
Add a password to protect your entire workbook and control whether others can open or make changes to it. Protect your file by setting passwords for Open and Modify.