Convert CSV to Excel in C# with Aspose.cells

convert_csv_to_excel.cs

using System;
using Aspose.Cells;

class CsvToExcelConverter
{
    static void Main()
    {
        // Path to the source CSV file
        string csvPath = "input.csv";

        // Configure load options for CSV (default delimiter is comma)
        var loadOptions = new LoadOptions(LoadFormat.CSV)
        {
            // Uncomment and modify if your CSV uses a different delimiter
            // CsvSeparator = ';',
            // Encoding = System.Text.Encoding.UTF8
        };

        // Load CSV into a Workbook object
        Workbook workbook = new Workbook(csvPath, loadOptions);

        // Optional: apply any worksheet customizations here
        Worksheet sheet = workbook.Worksheets[0];
        Cells cells = sheet.Cells;
        // Example: Auto-fit columns for better appearance
        cells.AutoFitColumns();

        // Save the workbook as an Excel file
        string excelPath = "output.xlsx";
        workbook.Save(excelPath, SaveFormat.Xlsx);

        Console.WriteLine($"CSV file '{csvPath}' successfully converted to '{excelPath}'.");
    }
}