Dr.Fone User Guide for DocPassRemover

Part 1: What Is a Excel Open Password?

An Excel open password is a security feature that prevents anyone from opening or viewing the contents of a spreadsheet (.xls, .xlsx, .xlsm) without the correct password. Commonly used to protect financial data, business reports, or sensitive records, this type of lock fully restricts access—unlike sheet-level editing or formatting restrictions. Once forgotten, the file becomes unusable unless a specialized recovery solution is used.

Method 1. Combined Decryption

If you still recall certain elements of your Excel spreadsheet password—like character types, partial words, number sequences, or estimated length—the Combined Decryption mode offers a fast and effective way to recover access. By using this partial information, the tool narrows down the possibilities and dramatically speeds up the recovery process.

Choose the option that states: "I know some information about the password".

From the list of recovery methods, select "Combined Decryption", then continue to the next screen.

Provide any details you remember—possible prefixes or suffixes, specific letters or symbols, or even estimated character count. The tool will use this input to build targeted password patterns.

Method 2. Dictionary Attack

If your Excel workbook was protected using a familiar or easy-to-guess password—like "budget2023" or "123456table"—Dictionary Attack mode is your most efficient route. Instead of cycling through every potential combination, this method tests your file against a vast database of popular passwords to quickly find a match.

Once your locked Excel file is added, select the option: "It's a common password, but I don’t know the exact password".

In the method selection window, choose "Dictionary Attack", then proceed by hitting "Next".

The tool will auto-load its internal password set.

Prefer using your own password list? Simply click "Import" and add a local dictionary file.

With the password library ready, the tool will begin scanning through each entry until it identifies a matching password.

Once cracked, the password will be shown. You can then open your spreadsheet as usual, with all data, formulas, and formatting fully intact.

Method 3. Brute Force Decryption (For Strong/Unknown Passwords)

Can’t remember a single detail about the password to your Excel file? Brute Force Unlock is your go-to solution when there are zero clues. Whether the password is long, complex, or randomly generated, this method systematically tests every possible character combination to retrieve access—no memory required.

Once your encrypted Excel file is uploaded, choose the option: "I don't know anything about the password".

From the mode options, select "Brute Force Decryption", then click "Next" to begin.

The software will begin running all potential combinations. You’ll be able to track the attempt progress on screen. The duration will vary depending on password strength and length.

Once a valid match is found, the password will be revealed and you’ll be able to open the document—no data loss, no formatting issues.