git clone https://github.com/yourusername/excel-password-remover.git
cd excel-password-remover
pip install -r requirements.txt
MIT License – free for personal and educational use.
Top GitHub Tools for Removing Excel Passwords Losing access to a critical spreadsheet because of a forgotten password is a common headache for professionals. While Microsoft Excel offers built-in protection features like "Protect Sheet" and "Protect Workbook," these are often used for accidental data prevention rather than high-level security. For those who need to regain access to their own files, GitHub hosts several open-source tools and scripts that can automate the removal of these passwords. Types of Excel Protection
Before choosing a tool from GitHub, it is essential to identify the type of password you need to remove:
Worksheet/Workbook Protection: Prevents users from editing specific cells or changing the structure of the workbook. These are the easiest to bypass because the password is often just a hash within the file's XML structure.
VBA Project Protection: Locks the macros and code within the file so they cannot be viewed or edited.
File Open Password: Encrypts the entire file. Most lightweight GitHub scripts cannot remove this if you do not know the password, as it requires brute-forcing or decryption. Highly Rated GitHub Repositories for Excel Unlocking 1. Excel-Worksheet-Password-Remover (Web-Based)
This tool is ideal for users who do not want to install Python or Java. It runs entirely in your browser (client-side), meaning your file is never uploaded to a server. It works by editing the XML files of an Excel document to strip out protection tags. pabumake/reppy: Remove Excel Passwords with Python
What is this for? Well this Tool is made to remove the excel spreadsheet passwords because users forgot passwords a hundred times.
ajott/Excel-Unlocker: A lightweight, portable C# ... - GitHub
This essay examines the technical and practical aspects of Excel password removal tools hosted on GitHub, exploring their methodology and common use cases. The Mechanics of Excel Password Removal
GitHub has become a primary hub for open-source tools designed to bypass or remove protections in Microsoft Excel files. These tools generally target two specific types of protection: Worksheet Protection and VBA Project Protection.
Worksheet and Workbook Protection: Modern Excel files (.xlsx or .xlsm) are essentially compressed ZIP archives containing a collection of XML files. Tools like Excel-Unlocker automate the process of unzipping the archive and searching for specific XML tags, such as
VBA Project Protection: Removing passwords from VBA (Visual Basic for Applications) macros often involves a "bypass" rather than a direct removal. Popular scripts, such as Excel-VBA-Project-Password-Remover, work by modifying the binary data of the file to trigger an "Invalid Key" prompt in Excel. This allows users to bypass the existing protection and then manually disable it within the Excel interface. Diversity of Tools on GitHub
The GitHub ecosystem offers various implementation methods to suit different user needs:
Python Scripts: Projects like reppy and excel-password-remover offer lightweight command-line interfaces for batch-processing files.
Web-Based Solutions: Repositories such as Excelled-web provide a client-side interface that performs the unlocking directly in the browser, ensuring the file is never uploaded to a server.
Compiled Applications: For users who prefer a graphical interface without installing coding environments, tools written in C# or Java, like unprotexcel, offer standalone executables. Practical and Ethical Considerations
These tools are widely used in professional settings where critical spreadsheets are "locked" by former employees or when passwords have been lost over time. However, most developers include disclaimers stating that these tools are intended for legitimate and legal purposes only. It is also important to note that most of these open-source tools cannot remove File Encryption passwords (the "Password to Open"). If the entire file is encrypted, more advanced brute-force or dictionary-attack tools are typically required.
ajott/Excel-Unlocker: A lightweight, portable C# ... - GitHub
Searching for an "Excel Password Remover" on GitHub reveals a variety of open-source tools designed to bypass spreadsheet restrictions. Most of these tools function by exploiting the XML structure of modern
files rather than using "brute force" to guess a complex file-opening password. Top GitHub Repositories
The following tools are some of the most prominent options for removing Excel protections: aziascreations/Excel-Worksheet-Password-Remover
: A browser-based tool that simplifies editing the internal XML files of an Excel document to strip sheet passwords. azmke/unprotexcel
: A lightweight, Java-based desktop application. It features a user-friendly interface with drag-and-drop support and a one-click "Unlock" button. ajott/Excel-Unlocker
: A portable C# application that specifically targets both worksheet and VBA project protection Demoen/excel-password-cracker
: A Python-based script with a simple graphical interface (GUI) that removes
: A privacy-focused web app where all processing happens on the client side , meaning your file is never uploaded to a server. Key Capabilities & Limitations
Before choosing a tool, it is important to distinguish between the two main types of Excel passwords: Lock or unlock specific areas of a protected worksheet
The intersection of Microsoft Excel’s security and the open-source community on GitHub has created a specialized niche for "Password Removers." These tools are frequently sought by users who have lost access to critical spreadsheets or by security researchers testing the robustness of office document encryption. The Role of GitHub in Excel Security
GitHub serves as a central repository for various scripts and applications designed to bypass or remove Excel protections. These projects typically fall into two categories:
VBA Macro Removers: Scripts that strip the password protection from the Visual Basic for Applications (VBA) project structure within a workbook.
Sheet/Workbook Unprotectors: Tools that modify the XML structure of modern .xlsx or .xlsm files to remove "Read-Only" or sheet-level protection without needing the original password. Popular Methodologies
Most tools found on GitHub, such as those within the Excel Password Remover search results, utilize one of the following methods:
XML Modification: Since modern Excel files are essentially zipped XML files, many Python or PowerShell scripts on GitHub unzip the file, find the sheetProtection or workbookProtection tags, and delete them.
Hex Editing: For older .xls (97-2003) formats, some tools use hex editing to change specific bytes that signal to Excel that a password is required.
Brute Force/Dictionary Attacks: While rarer for high-level file encryption (which is computationally expensive), some repositories provide wrappers for tools like John the Ripper or Hashcat to crack actual file-open passwords. Ethical and Security Considerations
Using password removal tools from GitHub comes with significant caveats:
Security Risks: Running arbitrary code or scripts from unverified repositories can expose a system to malware or data exfiltration.
Data Integrity: Improperly modifying the XML structure of a spreadsheet can lead to file corruption.
Legal Compliance: These tools should only be used on files for which the user has legal ownership or explicit permission to access. Conclusion
GitHub remains a vital resource for recovery and research, offering transparent, community-vetted alternatives to expensive proprietary software. However, the move toward stronger AES-256 encryption in recent Microsoft Office versions means that simple XML "stripping" is increasingly limited to removing editing restrictions rather than cracking complex "open" passwords.
# Clone a typical tool
git clone https://github.com/username/excel-password-remover
cd excel-password-remover
Go to GitHub and search: excel password remover vba. Select the repository by Endothermic_Dragon or SunnyDesignor. Look for a file named password_remover.vba.