Use Unicode Text - VB.NET
Spreadsheet SDK sample in VB.NET demonstrating ‘Use Unicode Text’
Module1.vb
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Bytescout.Spreadsheet
Imports System.Diagnostics
Imports System.IO
Module Module1
    Sub Main()
        ' Create new XLSDocument
        Dim document As New Spreadsheet()
        ' Move page
        Dim worksheet As Worksheet = document.Workbook.Worksheets.Add()
        ' Set unicode text
        worksheet.Cell(0, 0).Value = "???"
        ' remove output file if already exists
        If File.Exists("Output.xls") Then
            File.Delete("Output.xls")
        End If
        ' Save document
        document.SaveAs("Output.xls")
        ' Close Spreadsheet
        document.Close()
        ' open in default spreadsheets viewer/editor
        Process.Start("Output.xls")
    End Sub
End Module
Resources.Designer.vb
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