如何访问Excel中的excel文件＃

Question

我需要打开特定位置的Excel表格（d:\temp\emp.xls），然后加粗列标题并保存文件。

我想这样做，但没有得到如何打开文件并访问1行，并使他们在C＃中的粗体？

Answer 1

string connectionString =“Provider = Microsoft.Jet.OleDb.4.0; data source = c：\ customers.xls; Extended Properties = Excel 8.0;”;

// Select using a Named Range 
    //string selectString = "SELECT * FROM Customers"; 

    // Select using a Worksheet name 
    string selectString = "SELECT * FROM [Sheet1$]"; 

    OleDbConnection con = new OleDbConnection(connectionString); 
    OleDbCommand cmd = new OleDbCommand(selectString,con); 

    try 
    { 
    con.Open(); 
    OleDbDataReader theData = cmd.ExecuteReader(); 
    while (theData.Read()) 
    { 
     Console.WriteLine("{0}: {1} ({2}) - {3} ({4})", theData.GetString(0),theData.GetString(1),theData.GetString(2),theData.GetString(3),theData.GetString(4)); 
    } 
    } 
    catch (Exception ex) 
    { 
    Console.WriteLine(ex.Message); 
    } 
    finally 
    { 
    con.Dispose(); 
    } 

[从C＃创建的Excel（.XLS和.XLSX）文件（的