话不多说，上代码！

class clsoledb { OleDbConnection connection; public void OpenConnection(string xlsFils) { if (!File.Exists(xlsFils)) { MessageBox.Show("文件" + xlsFils + "不存在", "提示"); return; } string conn = "Provider = Microsoft.Jet.OLEDB.4.0;Data Source =" + xlsFils + ";Extended Properties='Excel 8.0;HDR=NO;IMEX=1;'"; connection = new OleDbConnection(conn); try { connection.Open(); } catch (OleDbException ex) { if (ex.ErrorCode == -2147467259) { connection.ConnectionString = "Provider = Microsoft.Ace.OLEDB.12.0;Data Source =" + xlsFils + ";Extended Properties='Excel 12.0;HDR=NO;IMEX=1;'"; connection.Open(); } } } public DataTable Select() { DataTable dt = new DataTable(); string Sql = "select * from [$A1:R65536]"; OleDbDataAdapter mycommand = new OleDbDataAdapter(Sql, connection); mycommand.Fill(dt); if (dt.Rows.Count > 0) { DataRow dr = dt.Rows[0]; for (int col = 0; col < dt.Columns.Count; col++) { dt.Columns[col].ColumnName = dr[col].ToString(); } dt.Rows[0].Delete(); dt.AcceptChanges(); } return dt; } }

以上这篇OLEDB打开Excel文件的实现方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。