文件太大错误

我有一个错误405，其消息是：“在文件中找不到DataSet结构：[文件路径]”来自具有100万条记录（文件大小：3GB）的数据集的From数据集块。其他人
试图打开一个这么大的文件？
Notepad ++向我展示了前80k的记录。
请不要告诉我，我必须用C或其他东西解析它。



     以下为原文

  I've got an error 405 whose message is: "A DataSet structure was not found in file: [file path]"

Comes from a From Data Set block with a Data Set of 1 million records (file size: 3GB).

Anyone else tried to open a file this big?  Notepad++ shows me the first 80k records.  Please don't tell me I'll have to parse it in C or something.