C#读取Excel数据

        /// <summary>
        /// 返回Excel数据源
        /// </summary>
        /// <param name="filePath">文件路径</param>
        /// <returns></returns>
        public static System.Data.DataTable ReadExcel(string filePath)
        {
            //strConn = "Provider=Microsoft.Jet.  OLEDB.4.0;Data Source=C:\\Erp1912.xls;Extended   Properties='Excel8.0;HDR=Yes;IMEX=1'";  
            //通过Imex=1来把混合型作为文本型读取，避免null值

            System.Data.DataTable tab = new System.Data.DataTable();
            string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Excel 8.0;data source=" + filePath;
            OleDbConnection myConn = new OleDbConnection(strCon);
            try
            {
                myConn.Open();

                //获取所有Sheet名称
                DataTable sheetNames = myConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
                string strCom = string.Format(" SELECT * FROM [{0}]", sheetNames.Rows[0]["TABLE_NAME"]);
                OleDbDataAdapter myCommand = new OleDbDataAdapter(strCom, myConn);
                myCommand.Fill(tab);
                return tab;
            }
            catch
            {
                return null;
            }
            finally
            {
                myConn.Close();
            }
        }
        #endregion
    }