: A browser-based tool that simplifies the manual process of editing the underlying XML files to remove sheet-level editing restrictions. Excel Sheet Password Cracker : A Python application with a GUI that eliminates tags from worksheet XML files to unlock them for editing. Common Removal Techniques
tag, delete it, and re-zip the file to remove editing locks. Hex Editing (for VBA) : To unlock VBA projects, tools like ExcelUnlocker
GitHub repositories typically use one of these methods to bypass security: XML Manipulation files are actually zipped folders of XML. Tools like unzip the file, find the sheetProtection Excel Password Remover Github
replace specific hex "couplets" that signal the VBA editor to prompt for a password. VBA Macros GitHub Gists
ajott/Excel-Unlocker: A lightweight, portable C# ... - GitHub : A browser-based tool that simplifies the manual
Several open-source tools on GitHub allow you to remove or bypass passwords in Excel workbooks. These tools generally target three types of protection: sheet protection (limiting edits), VBA protection (locking macros), and open passwords (restricting file access). Popular GitHub Tools msoffcrypto-tool
provide simple VBA scripts that exploit weak 16-bit hashing in older Excel versions to generate a working (though often not the original) password to unprotect sheets. Important Note on Encrypted Files Hex Editing (for VBA) : To unlock VBA
: A Python library and command-line tool specifically designed to decrypt MS Office files that require a password to open. It is widely used for batch-processing locked files. ExcelUnlocker