Excel Decryption for XLS

The following example shows how you can use GemBox.Spreadsheet to load an encrypted XLS file and save it as a decrypted XLS file in C# and VB.NET.

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using GemBox.Spreadsheet;

class Program
{
    static void Main()
    {
        // If using the Professional version, put your serial key below.
        SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY");

        var inputPassword = "%InputPassword%";

        var workbook = ExcelFile.Load("%InputFileName%",
            new XlsLoadOptions() { Password = inputPassword });

        workbook.Save("Decrypted File.xls");
    }
}
Imports GemBox.Spreadsheet

Module Program

    Sub Main()

        ' If using the Professional version, put your serial key below.
        SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY")

        Dim inputPassword = "%InputPassword%"

        Dim workbook = ExcelFile.Load("%InputFileName%",
            New XlsLoadOptions With {.Password = inputPassword})

        workbook.Save("Decrypted File.xls")

    End Sub
End Module
Decrypting Excel file of XLS format in C# and VB.NET
Screenshot of Excel workbook's decryption

Note that GemBox.Spreadsheet currently doesn't support encrypting XLS files (saving password protected XLS files), but it does support encrypting XLSX files.

See also


Next steps

GemBox.Spreadsheet is a .NET component that enables you to read, write, edit, convert, and print spreadsheet files from your .NET applications using one simple API.

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