How to read XLSX file in VB.NET

EasyXLS Excel library can be used to import Excel files in VB.NET. The library works with .NET Framework or .NET Core platform.

Step 1: Download EasyXLS Excel Library for .NET

To download the trial version of EasyXLS Excel Library, press the below button:

Download EasyXLS™ Excel Library for VB.NET

If you already own a license key, you may login and download EasyXLS from your account.

Install the downloaded EasyXLS installer for v8.6 or earlier.

Step 2: License file setup

Step required for EasyXLS v9.0 or later.

If you are using a trial, generate a trial license file from EasyXLS trials page. The trial license is valid for 30-days.

If you own a license key, you may login to the account that purchased the license and generate the license file from:

Setup the license file into your project using these guidelines.

Step 3: Create a VB.NET project

If don't have a project, create one as ASP.NET web application, windows forms app, console application, class library or service.

Step 4: Include EasyXLS library into project

EasyXLS.dll must be added as reference to your project. EasyXLS.dll can be found:
- Inside the downloaded archive at Step 1 for EasyXLS v9.0 or later
- Under installation path for EasyXLS v8.6 or earlier, in "Dot NET version" folder.

Add EasyXLS reference

Step 5: Run VB.NET code that reads XLSX file

Execute the following VB.NET code that imports an XLSX file.

' Tutorial 36
' This tutorial shows how to read an Excel XLSX file in VB.NET (the
' XLSX file generated by Tutorial 04 as base template), modify
' some data and save it to another XLSX file (Tutorial36 - read XLSX file.xlsx).

Imports EasyXLS
Imports System.IO

Module Tutorial36

    Sub Main()

        Console.WriteLine("Tutorial 36" & vbCrLf & "----------" & vbCrLf)

        ' Create an instance of the class that reads Excel files
        Dim workbook As New ExcelDocument

        ' Read XLSX file
        Console.WriteLine("Reading file C:\Samples\Tutorial04.xlsx." & vbCrLf)
        If (workbook.easy_LoadXLSXFile("C:\Samples\Tutorial04.xlsx")) Then

            ' Get the table of data for the second worksheet
            Dim xlsSecondTab As ExcelWorksheet = workbook.easy_getSheet("Second tab")
            Dim xlsSecondTable = xlsSecondTab.easy_getExcelTable

            ' Write some data to the second sheet
            xlsSecondTable.easy_getCell("A1").setValue("Data added by Tutorial36")

            For column As Integer = 0 To 4
                xlsSecondTable.easy_getCell(1, column).setValue("Data " & (column + 1))

            ' Export the new XLSX file
            Console.WriteLine(vbCrLf & "Writing file C:\Samples\Tutorial36 - read XLSX file.xlsx.")
            workbook.easy_WriteXLSXFile("C:\Samples\Tutorial36 - read XLSX file.xlsx")

            ' Confirm export of Excel file
            Dim sError As String = workbook.easy_getError()
            If (sError.Equals("")) Then
                Console.Write(vbCrLf & "File successfully created.")
                Console.Write(vbCrLf & "Error encountered: " & sError)
            End If
            Console.WriteLine(vbCrLf & "Error reading file C:\Samples\Tutorial04.xlsx " & _
                              vbCrLf & workbook.easy_getError())
        End If

        ' Dispose memory

        Console.WriteLine(vbCrLf & "Press Enter to Exit...")
    End Sub

End Module

EasyXLS Excel libraries:

Excel Library for VB.NET
full .NET version to import, export or convert Excel files
Excel Reader for VB.NET
.NET version to read and import Excel files
Download EasyXLS™ Excel Library for VB.NET

File formats:

Office 365
MS Excel 2021 - 2024
MS Excel 2007 - 2019
MS Excel 97 - 2003