How To Protect Excel File

This topic has been explained in great detail in the video shown below, to learn this topic just play the video and the notes are mentioned below the video.


How To Protect Excel File






 

Protect an Excel file

You can protect your Excel file with a password to prevent others from accessing data in your Excel files. This topic covers the two different ways you can protect an Excel file — using encryption, and the setting a password to open/modify an Excel file. 

  • Microsoft can’t retrieve forgotten passwords.

  • There are no restrictions on the passwords you use with regards to length, characters or numbers, but passwords are case-sensitive.

  • It’s not always secure to distribute password-protected files that contain sensitive information such as credit card numbers.

    Be cautious when sharing files or passwords with other users. You still run the risk of passwords them falling into the hands of unintended users. Remember that locking a file with a password does not necessarily protect your file from malicious intent.

Encrypt an Excel file

When you encrypt an Excel file, you lock it with a password. Once you encrypt an Excel file, no one else will be able to open it. This is the most common and recommended technique to lock an Excel file.

Follow these steps to encrypt an Excel file:

  1. Click File > Info > Protect Workbook > Encrypt with Password .

  2. Enter a password, and click OK.

    Encrypt Document dialog box

  3. In the Confirm Password dialog box, reenter the password you entered in the previous step.

When you/another user tries to open the file, the following screen appears:

Encrypted file is locked with a password

Set a password to allow reading or modifying

You can set two passwords on the file – one to open the file as read-only, and the other to modify. Then you can share the appropriate passwords with the users depending on the access level they should have.

Read-only access does not prevent someone from making changes to a file, but it does prevent them from saving those changes unless they rename the file and save it as something other than the original.

For users who need to be able to modify the file, you will have to share both open and modify passwords.

Follow these steps to set a password to open/modify an Excel file:

Note: In the Mac, go to File > Save As > Options, and then set the password to open or modify the file. Select Read Only if you want users to open the file as Read-only.

  1. In the Excel file, click File > Save As.

  2. Click a location, such as Computer or your My Site web page.

  3. Click a folder, such as Documents or one of the folders on your OneDrive, or click Browse.

  4. In the Save As dialog box, go to the folder you want to use, then click Tools and then click General Options.

    The Tools list in the Save As box

  5. You can specify one or both passwords here, one to open the file, another to modify the file, depending on your requirements.

    The General Options dialog box.

  6. Click Save.

When someone tries to open this file, Excel prompts for a password.

Enter a password to open a protected file

A second screen shows if there is a password to modify the file. Users who don’t have the modify password can click Read Only and start viewing the contents of the file.

Modify a protected Excel file with a password

 
How can I tell if a file is protected?

Click File > Info > Protect Workbook to see this protection status.

The Protect Workbook status is enabled when file protection is enabled in Excel

 
Disable encryption in an Excel file
  1. In your Excel file, click File > Info > Protect Workbook, and then click Encrypt with Password.

  2. Delete the password and click OK.

 
Remove passwords

You can change or remove passwords that are set for opening/modifying an Excel file, by following the same procedure as setting the passwords.

Simply delete the password you set in the General Options box.

Check for the correct file name

 
The video has been made by me and the text has been taken from a Microsoft Blog 
 








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