Want to unprotect Excel manually without using online tools? This technical guide explains the XML editing method – a hands-on approach that gives you complete control over the process.

Warning: This method requires technical knowledge and can corrupt your file if done incorrectly. For a safer, faster solution, consider using KeylessFile instead. This guide is for advanced users who understand file structures and XML editing.

Requirements and backups

Always work on a copy.
Prefer modern formats (.xlsx/.xlsm).
Close Excel before manipulating files.

Technical concept

An .xlsx file is a ZIP with XML. Sheet/workbook protection is configuration metadata, not encryption. Editing those tags removes editing protection.

Steps (ZIP method)

Rename: mybook.xlsx → mybook.zip.
Unzip and navigate to xl/worksheets/ (sheets) and xl/workbook.xml (structure).
Open XML and locate protection marks (sheetProtection, workbookProtection).
Remove those nodes or attributes (e.g., password, sheet, objects, scenarios, lockStructure).
Re‑zip the root folder and rename back to .xlsx.
Open in Excel and verify editing and structure.

Notes: preserve ZIP structure. Don’t alter unrelated XML. For many sheets, consider scripts if you understand the format.

Risks and safeguards

File corruption if paths/packaging change.
Loss of defined names/links if you move files.
Not applicable to encryption (password to open). No shortcuts for confidentiality.

Validation

Review formulas, locked cells, hidden sheets and intended permissions.
Run “Inspect Document” to clean metadata.

Alternative: automatic tool

If the technical procedure isn’t practical, use the automatic tool to remove editing protection in seconds without altering data.