Excel File

There are a lot of paid programs that can recovery your forgotten password. However, they do cost a bit (> $50 USD). You can google them on the web. If your password is short, you can try the following link to download the demo version of excel password recovery tool. This demo version will work with any passwords up to 5 characters long.

If you create a password that is required to open a workbook or gain access to its data, and then you forget the password, you can't open the workbook, gain access to its data in another workbook through links, remove protection from the workbook, or recover data from the workbook.

Because you cannot gain access to password-protected workbook or worksheet elements if you lose the password, it's a good idea to keep a list of your passwords and their corresponding workbook and worksheet names in a secure place.