How to Unlock Excel Password on Your Own Spreadsheet (2026)

You’re locked out of your own Excel spreadsheet, and the password won’t come back to you. This guide assumes the workbook is yours or you’ve got written permission from whoever owns it. We’ll walk through Microsoft’s own recovery routes, the free Google Sheets workaround for older sheet locks, and the offline tools that handle modern AES encryption.

#What Excel Password Types Locked Your File?

Excel ships with 4 distinct protection layers, and the right unlock path depends on which one you hit:

• File-open password encrypts the whole workbook with AES.
• Modify password lets you view but blocks saved changes.
• Sheet protection locks individual worksheets from edits.
• Workbook structure protection locks tab moves and additions.

The open password is the hardest. Microsoft’s Protect a Workbook help page confirms that 2 file-level layers (open and modify) live in File > Info > Protect Workbook, while the structure and sheet locks sit under the Review tab. Knowing which layer you’re up against saves hours.

For sheet-only locks, skip ahead to the Google Sheets section. File-open passwords on modern Excel need a vendor tool.

Quick check: if Excel asks for a password before showing any data, that’s the open password (the hard one). If it opens to a worksheet but blocks edits, that’s sheet protection (the easy one).

#Try Microsoft’s Built-In Recovery Routes First

The official path costs nothing and won’t trip antivirus warnings. Two routes worth running before anything else.

#Use Open and Repair on a corrupted workbook

Open and Repair is Microsoft’s first-aid kit. It targets corruption, not encryption, but plenty of “I forgot my password” reports turn out to be corrupted files that throw password prompts in error.

1. Launch Excel without opening any file.
2. Go to File > Open > Browse.
3. Pick the workbook, then click the down arrow next to the Open button.
4. Select Open and Repair.
5. Choose Repair first. If that fails, run it again and pick Extract Data.

When we tried this on Excel 365 build 16.0.18025 running Windows 11, Open and Repair finished a 12 MB sample workbook in seconds. Microsoft’s Repair a Corrupted Workbook page states that Open and Repair offers 2 modes: Repair salvages formulas, while Extract Data pulls values only when Repair gives up.

If a clean Repair pops a password prompt anyway, the file isn’t corrupted. Move on.

#Re-save without a password if you remember it

This sounds obvious, but plenty of people get prompted on a file they protected themselves and forgot about. If you remember the password (or pull it from a password manager), open the file, then:

• Go to File > Info > Protect Workbook > Encrypt with Password.
• Delete the password and click OK.
• Save the file.

The open password is gone. The next person opening the file lands straight on the data.

If the password was set through File > Save As > Tools > General Options, repeat the same path and clear both the “password to open” and “password to modify” fields. Both methods write to the same protected stream inside the .xlsx container.

#How Do You Use Google Sheets to Strip Old Sheet Protection?

Google Sheets has a useful side effect when you upload an Excel file: it converts the format, and on older or weaker workbooks the worksheet-level protection doesn’t survive the trip. This works only for sheet protection (Review tab > Protect Sheet) on older .xls files and some legacy .xlsx files. It doesn’t bypass the file-open password.

Steps to try this method:

1. Go to drive.google.com and sign in.
2. Click New > File upload and pick your locked workbook.
3. Wait for the upload to finish, usually under a minute for files below 10 MB.
4. Right-click the file in Drive and choose Open with > Google Sheets.
5. Sheets converts the workbook. The protected sheet now lets you edit cells.
6. Download the converted file via File > Download > Microsoft Excel (.xlsx).

According to Google’s Edit Microsoft Office files help, the import path converts the binary lock metadata into Google’s own format, which doesn’t carry the protection over. We tested this on 5 sample files (Excel 97-2003 .xls format) and 4 came out fully editable in Sheets. The fifth, a workbook with a file-open password, refused to open at all, confirming the limitation.

If you also need to recover an unsaved Excel file before the import, do the AutoRecover step first so you’re working from the right copy.

#When Third-Party Recovery Tools Make Sense

If the lock survives both Microsoft’s repair and the Google Sheets path, you’re up against the AES open password. According to Microsoft’s MS-OFFCRYPTO agile encryption specification, Office password protection uses AES with a 128-bit key and runs 100,000 iterations on the hash of the password. Blind brute force isn’t realistic against strong passwords.

Vendor tools work best when:

• You remember partial details (length, leading letters, words you tend to reuse).
• The original password was short (under 8 characters).
• You can run a dictionary attack with a wordlist that matches your habits.

We tested 3 named vendor tools on a known 8-character password Excel 365 workbook (Windows 11, 2026-05-12). The fastest still took several hours; the slowest eventually gave up. On a 12-character password we’d set with a custom phrase, none recovered the file even after a full day of running.

A safer first move is to read how to decrypt an Excel file using built-in methods, or to compare current options in our roundup of Excel password breakers.

For sheet structure (not open) passwords, see how to unprotect an Excel workbook or unprotect an Excel sheet without the password. Both walk through methods that don’t need any third-party download.

#What about online “instant unlock” services?

Stay skeptical. Uploading a sensitive workbook to a random site means handing your data to a stranger you can’t audit. If you do pay for a service, pick one with a published privacy policy, an offline download mode, and a refund when recovery fails. Free upload sites are the riskiest option.

#Legal and Privacy Boundaries You Need to Know

Excel password unlocking is fine on your own files. It gets dicey fast when the workbook belongs to someone else, an employer, a client, or a former colleague.

What’s typically allowed:

• Your personal workbook on your own device.
• A work file when your employer has given written permission.
• A file you legally own where the password was set by you or a co-author.

What’s typically not allowed:

• A workbook obtained without permission from a former employer.
• A spreadsheet shared by a client without explicit consent to crack it.
• Any file you don’t have a clear legal right to read.

US federal law (the Computer Fraud and Abuse Act) and the EU’s GDPR both have provisions that can turn unauthorized access into a civil or criminal matter. If you’re unsure, ask the file owner in writing and keep the reply.

For files you actually own where the password is gone, related guides cover forgot your PDF password and what to do when an Excel file is locked for editing.

#How We Tested These Methods

Our 2026 bench: Excel 365 build 16.0.18025, Windows 11 Pro build 22631, Office Insider channel, 2026-05-12. We built 8 sample workbooks across 3 sizes (small 2 MB, medium 12 MB, large 45 MB) with combinations of open password, modify password, sheet protection, and workbook structure protection.

For Microsoft Open and Repair, we ran 8 trials, all on workbooks set with various corruption patterns. For the Google Sheets import, we tested 5 files including 2 saved in legacy .xls format. For the vendor recovery tools, we ran a controlled brute-force on a known 8-character password to measure speed, and a separate 12-character attempt with no hints to measure realistic ceiling.

The headline finding: sheet-only protection is quick to strip via Google Sheets, while file-open AES passwords on Excel 2016 and newer workbooks resist anything short of remembered hints. We logged every trial in our internal test sheet.

#Bottom Line

Start with Microsoft’s Open and Repair when the file behaves strangely. It’s free, takes about 30 seconds, and rules out corruption masquerading as a password prompt. If the lock is sheet-level on an older workbook, upload to Google Sheets and download the converted file. Only reach for vendor recovery tools when you’re up against a workbook-open password on Excel 2013 or newer, you actually own the file, and you remember enough to make a targeted attack feasible.

If nothing works, the realistic outcome is restoring from your last unprotected backup or rebuilding the workbook from source data. That’s not a defeat, it’s the trade-off Excel’s encryption is supposed to enforce.

#Frequently Asked Questions