Excel worksheet protection

The following example demonstrates how to protect a worksheet.

Note that specifying advanced settings like sheet password or allowing some objects to be editable is supported only for XLSX file format.

Screenshot of Excel worksheet protected with GemBox.Spreadsheet for Java
Excel worksheet protected with GemBox.Spreadsheet for 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");

        ExcelFile workbook = new ExcelFile();
        ExcelWorksheet worksheet = workbook.addWorksheet("Sheet Protection");

        worksheet.getCell(0, 2).setValue("Only cells from A1 to A10 are editable.");

        for (int i = 0; i < 10; i++) {
            ExcelCell cell = worksheet.getCell(i, 0);
            cell.setValue(i);
            cell.getStyle().setLocked(false);
        }

        worksheet.setProtected(true);

        // ProtectionSettings class is supported only for XLSX file format.
        worksheet.getCell(2, 2).setValue("Inserting columns is allowed (only supported for XLSX file format).");
        WorksheetProtection protectionSettings = worksheet.getProtectionSettings();
        protectionSettings.setAllowInsertingColumns(true);

        worksheet.getCell(3, 2).setValue("Sheet password is 123 (only supported for XLSX file format).");
        protectionSettings.setPassword("123");

        workbook.save("Sheet Protection.%OutputFileType%");
    }
}

Check next example or download examples from GitHub.