读取Excel文件

[Flags]
private enum HDR { YES, NO };

/// <summary>
/// 读取Excel文件内容
/// </summary>
/// <param name="strFilePath">Excel文件路径</param>
/// <param name="HDR">YES（默认）,表示第一行是标题，不做数据使用；NO，表示第一行不是标题，做数据使用</param>
/// <param name="EMEX">
/// EMEX（IMport EXport Mode）
/// IMEX=0 汇出模式 写入用途;1 汇入模式 读取用途;2 连結模式 读取写入用途
/// </param>
/// <returns>Excel内容</returns>
private DataSet GetExcel(string strFilePath, HDR hdr = HDR.YES, int EMEX = 0)
{
    DataSet ds = new DataSet();
    //Excel链接
    OleDbConnection objConn = new OleDbConnection(string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + strFilePath + ";Extended Properties='Excel 12.0;HDR={0};IMEX={1};'", hdr, EMEX));
    objConn.Open();
    DataTable schemaTable = objConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
    //获取Excel的表名，默认值是sheet1
    string tableName = schemaTable.Rows[0][2].ToString();

    string strSQL = "SELECT * FROM [" + tableName + "]";
    OleDbCommand objCmd = new OleDbCommand(strSQL, objConn);
    OleDbDataAdapter myData = new OleDbDataAdapter(strSQL, objConn);
    //填充数据
    myData.Fill(ds, tableName);

    objConn.Close();
    return ds;
}