To help protect your computer, files from these potentially unsafe locations are opened as read only or in Protected View. By using Protected View, you can read a file, see its contents and enable editing …

Provides a workaround for an issue in which files from some Office 2010 applications are opened in Protected View when you open the files from local hosted servers.

To protect certain areas of the data in your worksheet from other users, you have to protect your worksheet. For more information, see Protect a worksheet. To know the difference between …

To prevent other users from accidentally or deliberately changing, moving, or deleting data in a worksheet, you can lock the cells on your Excel worksheet and then protect the sheet with a password.

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 add a password to an Excel file to prevent unauthorized users from opening or modifying it.

When you use Internet Explorer to open an Office document, the document is opened in Protected View because the document that is being opened is potentially unsafe.

Other possible causes are: Commands are disabled by the administrator The file is in Reduced Functionality Mode The file opened in Protected View Resolution You should contact the owner of …

How to protect an Excel file using a password to prevent unwanted access to your data.

You cannot open a workbook or document that has been password protected in the Windows-based version of Excel or Word if the password is longer than fifteen characters.