Read Excel Files without Interop

using IronXL;
using System.Linq;
    
//Supported spreadsheet formats for reading include: XLSX, XLS, CSV and TSV
WorkBook workbook = WorkBook.Load("test.xlsx");
WorkSheet sheet = workbook.WorkSheets.First();

//Select cells easily in Excel notation and return the calculated value
int cellValue = sheet["A2"].IntValue;


// Read from Ranges of cells elegantly.
foreach (var cell in sheet["A2:A10"])
{
    Console.WriteLine("Cell {0} has value '{1}'", cell.AddressString, cell.Text);
}

//Calculate aggregate values such as Min, Max and Sum
decimal sum = sheet["A2:A10"].Sum();


//Linq compatible
decimal max = sheet["A2:A10"].Max(c => c.DecimalValue);

Imports IronXL
Imports System.Linq

'Supported spreadsheet formats for reading include: XLSX, XLS, CSV and TSV
Private workbook As WorkBook = WorkBook.Load("test.xlsx")
Private sheet As WorkSheet = workbook.WorkSheets.First()

'Select cells easily in Excel notation and return the calculated value
Private cellValue As Integer = sheet("A2").IntValue


' Read from Ranges of cells elegantly.
For Each cell In sheet("A2:A10")
	Console.WriteLine("Cell {0} has value '{1}'", cell.AddressString, cell.Text)
Next cell

'Calculate aggregate values such as Min, Max and Sum
Dim sum As Decimal = sheet("A2:A10").Sum()


'Linq compatible
Dim max As Decimal = sheet("A2:A10").Max(Function(c) c.DecimalValue)