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摘要： OleDbConnection conExcel = new OleDbConnection(); try { OpenFileDialog openFile = new OpenFileDialog();//打开文件对话框。 openFile.Filter = ("Excel 文件(*.xls)|*.xls");//后缀名。 if (openFile.ShowDialog() == DialogResult.OK) { string filename = openFile.FileName; int index = filename.LastIndexOf("\ 阅读全文