Source file stays unchanged
The app creates a separate protected copy, so your original workbook remains in place.
VBA Shield
Create protected copies of Excel workbooks with VBA code while keeping the original file unchanged.
Local workbook processing
VBA Shield works with the files you select or drag into the app. Workbook contents and VBA code are processed locally on your device and are not uploaded by the app.
Supported Excel formats
Use VBA Shield with `.xlsm`, `.xlsb`, and `.xlam` workbooks.
Recovery password option
Set a recovery password when you want VBA Shield to create an unlocked copy later.
Simple workflow
The app automatically detects whether the selected file can be protected or unlocked.
1
Select a workbook
Choose or drag a macro-enabled Excel file into the app.
2
Create a protected copy
VBA Shield creates a new file using your configured suffix and randomized hiding replacement.
3
Open the output location
Review the created file in File Explorer and keep your source workbook unchanged.
Important protection note
VBA Shield is a practical protection layer, not cryptographic security. It is intended to prevent casual viewing of VBA code in everyday work scenarios. It is not an absolute guarantee against every form of file reverse engineering.