Microsoft.ace.Oledb.12.0 Connexions CSVR

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    public static DataSet ConvertTabFiles(string File, string TableName, string delimiter)
    {
        //The DataSet to Return
        DataSet result = new DataSet();

        //Open the file in a stream reader.
        StreamReader s;
        try
        {
            s = new StreamReader(@File);
        }
        catch
        {
            MessageBox.Show("Can't perform operation on file: " + File);
            return result;
        }

        //Split the first line into the columns  
        string[] columns = null;
        try
        {
            columns = s.ReadLine().Split(delimiter.ToCharArray());
        }
        catch
        {
            MessageBox.Show("Can't parse the file " + File + ", please try again!");
            return result;
        }

        //Add the new DataTable to the RecordSet
        result.Tables.Add(TableName);
        //MessageBox.Show("Add the new DataTable to the RecordSet");

        //Cycle the colums, adding those that don't exist yet 
        //and sequencing the one that do.
        foreach (string col in columns)
        {
            bool added = false;
            string next = "";
            int i = 0;
            while (!added)
            {
                //Build the column name and remove any unwanted characters.
                string columnname = col + next;

                //See if the column already exists
                if (!result.Tables[TableName].Columns.Contains(columnname))
                {
                    //if it doesn't then we add it here and mark it as added
                    result.Tables[TableName].Columns.Add(columnname);
                    added = true;
                }
                else
                {
                    //if it did exist then we increment the sequencer and try again.
                    i++;
                    next = "_" + i.ToString();
                }
            }
        }

        //Read the rest of the data in the file.        
        string AllData = s.ReadToEnd();

        string[] rows = AllData.Split("\r\n".ToCharArray());

        //Now add each row to the DataSet        
        foreach (string r in rows)
        {
            //Split the row at the delimiter.
            string[] items = r.Split(delimiter.ToCharArray());
            //Add the item
            result.Tables[TableName].Rows.Add(r);
        }
        //Return the imported data.
        return result;
    }