Unprotect a Worksheet with C++

If a developer needs to remove protection from a protected worksheet at runtime so that some changes can be made to the file, this can easily be done with Aspose.Cells.

Unprotect a Worksheet

Using Microsoft Excel

To remove protection from a worksheet:

From the Tools menu, select Protection followed by Unprotect Sheet. Protection will be removed unless the worksheet is password protected. In this case, a dialog prompts for the password. Enter the password and the worksheet will be unprotected.

Unprotecting a Simply Protected Worksheet Using Aspose.Cells

A worksheet can be unprotected by calling the Worksheet class' Unprotect method. A simply protected worksheet is one that is not protected with a password. Such worksheets can be unprotected by calling the Unprotect method without passing a parameter.

#include <iostream>
#include "Aspose.Cells.h"

using namespace Aspose::Cells;

int main()
{
    Aspose::Cells::Startup();

    // Source directory path
    U16String srcDir(u"..\\Data\\01_SourceDirectory\\");

    // Output directory path
    U16String outDir(u"..\\Data\\02_OutputDirectory\\");

    // Path of input Excel file
    U16String inputFilePath = srcDir + u"book1.xls";

    // Path of output Excel file
    U16String outputFilePath = outDir + u"output.xls";

    // Create a Workbook object
    Workbook workbook(inputFilePath);

    // Access the first worksheet in the Excel file
    Worksheet worksheet = workbook.GetWorksheets().Get(0);

    // Unprotect the worksheet without a password
    worksheet.Unprotect();

    // Save the Workbook in Excel97-2003 format
    workbook.Save(outputFilePath, SaveFormat::Excel97To2003);

    std::cout << "Worksheet unprotected and workbook saved successfully!" << std::endl;

    Aspose::Cells::Cleanup();
}

Unprotecting a Password Protected Worksheet Using Aspose.Cells

A password-protected worksheet is one that is protected with a password. Such worksheets can be unprotected by calling an overloaded version of the Unprotect method that takes the password as a parameter.

#include <iostream>
#include "Aspose.Cells.h"
using namespace Aspose::Cells;

int main()
{
    Aspose::Cells::Startup();

    // Source directory path
    U16String srcDir(u"..\\Data\\01_SourceDirectory\\");

    // Output directory path
    U16String outDir(u"..\\Data\\02_OutputDirectory\\");

    // Path of input Excel file
    U16String inputFilePath = srcDir + u"book1.xls";

    // Path of output Excel file
    U16String outputFilePath = outDir + u"output.out.xls";

    // Create workbook
    Workbook workbook(inputFilePath);

    // Accessing the first worksheet in the Excel file
    Worksheet worksheet = workbook.GetWorksheets().Get(0);

    // Unprotecting the worksheet with a password
    worksheet.Unprotect(u"");

    // Save Workbook
    workbook.Save(outputFilePath);

    std::cout << "Worksheet unprotected and saved successfully!" << std::endl;

    Aspose::Cells::Cleanup();
}