Protect the workbook with the following password, but do not ask users for it

Excel offers password protection for your workbook. It encrypts the source file and asks end users for a password in order to open the workbook.

XLS Padlock can use this password protection internally: it saves the Excel file with the password you provide. At runtime, the EXE file tells Excel the password when opening the compiled workbook. Your end users are not asked for the password at all.

Thus, you have increased protection: Excel password protection combined with security features offered by XLS Padlock.

You can generate a random password with the Generate button.

Leave the field empty to disable password protection, or if you already use Excel password protection and want to ask end users for the password.