Excel Encryption for XLS in Java

XLS encryption enables you to securely protect the content of your Excel workbook (XLS) from unwanted viewers.

Following example shows how to load encrypted XLS file and how to save workbook as encrypted XLS file in Java.

Input and output password should be specified in the appropriate text box. If password is empty, file won't be decrypted / encrypted.

Screenshot of XLS file decrypted and encrypted with GemBox.Spreadsheet for Java

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Input file name

Input password

Output password

Java

import com.gembox.spreadsheet.*;

class Program {

    public static void main(String[] args) throws java.io.IOException {
        // If using Professional version, put your serial key below.
        SpreadsheetInfo.setLicense("FREE-LIMITED-KEY");

        String inputPassword = "%InputPassword%";
        String outputPassword = "%OutputPassword%";

        XlsLoadOptions loadOptions = new XlsLoadOptions();
        loadOptions.setPassword(inputPassword);
        ExcelFile workbook = ExcelFile.load("%InputFileName%", loadOptions);

        XlsSaveOptions saveOptions = new XlsSaveOptions();
        saveOptions.setPassword(outputPassword);
        workbook.save("XLS Encryption.xls", saveOptions);
    }
}

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If you want to try the GemBox.Spreadsheet for Java yourself, you can download the free version. It delivers the same performance and set of features as the professional version, but with some operations limited. To remove the limitation, you need to purchase a license.

Published: December 13, 2018 | Modified: September 9, 2019 | Author: Marek Turis