To download the trial version of EasyXLS Excel Library, press the below button:
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: https://www.easyxls.com/my-orders
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.
Step 5: Run VB.NET code that adds formula to Excel cell
Execute the following VB.NET code that exports an Excel file with formulas.
'---------------------------------------------------------------
' Tutorial 11
'
' This tutorial shows how to create an Excel file in VB.NET that
' has a cell that contains SUM formula for a range of cells.
' --------------------------------------------------------------Imports EasyXLS
Module Tutorial11
Sub Main()
Console.WriteLine("Tutorial 11" & vbCrLf & "----------" & vbCrLf)
' Create an instance of the class that exports Excel filesDim workbook As New ExcelDocument
' Create a sheet
workbook.easy_addWorksheet("Formula")
' Get the table of data for the sheet, add data in sheet and the formulaDim xlsFirstTab As ExcelWorksheet = workbook.easy_getSheet("Formula")
Dim xlsTable = xlsFirstTab.easy_getExcelTable()
xlsTable.easy_getCell("A1").setValue("1")
xlsTable.easy_getCell("A2").setValue("2")
xlsTable.easy_getCell("A3").setValue("3")
xlsTable.easy_getCell("A4").setValue("4")
xlsTable.easy_getCell("A6").setValue("=SUM(A1:A4)")
' Export Excel file
Console.WriteLine("Writing file C:\Samples\Tutorial11 - formulas in Excel.xlsx.")
workbook.easy_WriteXLSXFile("C:\Samples\Tutorial11 - formulas in Excel.xlsx")
' Confirm export of Excel fileDim sError As String = workbook.easy_getError()
If (sError.Equals("")) Then
Console.Write(vbCrLf & "File successfully created. Press Enter to Exit...")
Else
Console.Write(vbCrLf & "Error encountered: " & sError & vbCrLf & "Press Enter to Exit...")
End If' Dispose memory
workbook.Dispose()
Console.ReadLine()
End Sub
End Module
