How to Convert TXT to XLSX Using C#. For more information, please follow link: https://kb.groupdocs.com/conversion/net/how-to-convert-txt-to-xlsx-using-csharp/

How to Convert TXT to XLSX Using C#.cs

using GroupDocs.Conversion;

namespace ConvertTXTtoXLSXUsingCSharp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Set License to avoid the limitations of Conversion library
            License lic = new License();
            lic.SetLicense(@"GroupDocs.Conversion.lic");

            // Import TXT document 
            var converter = new GroupDocs.Conversion.Converter("input.txt");

            // Get conversion option for final output document
            var txttoxlsxOptions = converter.GetPossibleConversions()["xlsx"]
                .ConvertOptions;

            // Save the XLSX to disk
            converter.Convert("output.xlsx", txttoxlsxOptions);
        }
    }
}