动态获取Excel表名

    public string GetExcelFirstTableName(string excelFileName)

    {

        string tableName = null;

        if (File.Exists(excelFileName))

        {

            using (OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet." +

                        "OLEDB.4.0;Extended Properties=\"Excel 8.0\";Data Source=" + excelFileName))

            {

                conn.Open();

                DataTable dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);

                for (int i = 0; i < dt.Rows.Count; i++)

                {

                    tableName += dt.Rows[i][2].ToString().Trim();

                }

            }

        }

        return tableName;

    }