using System;
using System.IO;
using System.Data;
using System.Data.OleDb;
using System.Collections.Generic;
using System.Text;
namespace XlsToCsv
{
class Program
{
static void Main(string[] args)
{
string sourceFile, worksheetName, targetFile;
sourceFile = "source.xls"; worksheetName = "sheet1"; targetFile = "target.csv";
convertExcelToCSV(sourceFile, worksheetName, targetFile);
}
static void convertExcelToCSV(string sourceFile, string worksheetName, string targetFile)
{
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + sourceFile + ";Extended Properties=\" Excel.0;HDR=Yes;IMEX=1\"";
OleDbConnection conn = null;
StreamWriter wrtr = null;
OleDbCommand cmd = null;
OleDbDataAdapter da = null;
try
{
conn = new OleDbConnection(strConn);
conn.Open();
cmd = new OleDbCommand("SELECT * FROM [" + worksheetName + "$]", conn);
cmd.CommandType = CommandType.Text;
wrtr = new StreamWriter(targetFile);
da = new OleDbDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
for (int x = 0; x < dt.Rows.Count; x++)
{
string rowString = "";
for (int y = 0; y < dt.Columns.Count; y++)
{
rowString += "\"" + dt.Rows[x][y].ToString() + "\",";
}
wrtr.WriteLine(rowString);
}
Console.WriteLine();
Console.WriteLine("Done! Your " + sourceFile + " has been converted into " + targetFile + ".");
Console.WriteLine();
}
catch (Exception exc)
{
Console.WriteLine(exc.ToString());
Console.ReadLine();
}
finally
{
if (conn.State == ConnectionState.Open)
conn.Close();
conn.Dispose();
cmd.Dispose();
da.Dispose();
wrtr.Close();
wrtr.Dispose();
}
}
}
}