如何解决在SQL中导出巨大的Excel数据时“外部数据库驱动程序出现意外错误”（后面跟着中文字符）

当我尝试将数据从Excel文件导入到SQL数据库时，出现如下错误：

来自外部数据库驱动程序的意外错误（霰呫潈ూŐీL）。

我的代码：

private void Import(string fileFullPath, string fileName, StreamWriter writer) { string ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileFullPath + ";Extended Properties=" + (char)34 + "Excel 12.0;HDR=YES;" + (char)34; using (OleDbConnection cn = new OleDbConnection(ConnectionString)) { cn.Open(); DataTable dbSchema = cn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null); if (dbSchema == null || dbSchema.Rows.Count < 1) { writer.WriteLine("Error: Could not determine the name."); throw new Exception("Error: Could not determine the name."); } if (dbSchema.Rows.Count > 0) { Hashtable objHashTableOptionPool = new Hashtable(); foreach (DataRow objDataRow in dbSchema.Rows) { if (objDataRow["TABLE_NAME"].ToString() != "Participants$") { string name = objDataRow["TABLE_NAME"].ToString(); string checkname = string.Empty; if (name.Substring((name.Length - 1), 1) == "'") { checkname = name.Substring(0, (name.Length - 1)); } else { checkname = name; } string Rname = name.Substring((checkname.Length - 1), 1); if (Rname != "$") { continue; } OleDbDataAdapter da = new OleDbDataAdapter("SELECT * FROM [" + name + "]", cn); DataTable dt = new DataTable(name); da.Fill(dt); //getting error here } } } } } 

用数据适配器填充数据表时出错。