DSOFramer在另一个窗口中关闭Excel文档。如果文件中未保存的数据，dsoframer无法打开“尝试访问无效地址”

I'm using Microsoft's DSOFramer control to allow me to embed an Excel file in my dialog so the user can choose his sheet, then select his range of cells; it's used with an import button on my dialog. control to allo