Encrypt Workbook using Aspose.Cells

Aspose.Cells - Encrypt Workbook

The following example shows how you can encrypt/password‑protect an Excel file using the Aspose.Cells API.

Java

 //Instantiate a Workbook object by Excel file path

Workbook workbook = new Workbook(dataDir + "book1.xls");

//Password‑protect the file.

workbook.getSettings().setPassword("1234");

//Specify XOR encryption type.

workbook.setEncryptionOptions(EncryptionType.XOR, 40);

//Specify Strong Encryption type (RC4, Microsoft Strong Cryptographic Provider).

workbook.setEncryptionOptions(EncryptionType.STRONG_CRYPTOGRAPHIC_PROVIDER, 128);

//Save the Excel file.

workbook.save(dataDir + "AsposeEncryptedWorkBook.xls");

Download Running Code

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Download Sample Code

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For more details, visit Encrypting Excel Files.