Cannot create a compound file

[Emperor]

I open a template excel file, add some data to it and save the file. I get "cannot create compound file" error.

Here's the code:

protected IWorkbook _Book;
ExcelEngine excelEngine = new ExcelEngine();
excelEngine.ThrowNotSavedOnDestroy = false;
IApplication excel = excelEngine.Excel;
excel.SheetsInNewWorkbook = 5;
_Book = excel.Workbooks.Open("Template Dir/Filename");

string filePath = "Some file path";
_Book.SaveAs(filePath+_FileName, ExcelSaveType.SaveAsXLS);
_Book.Close();
excelEngine.Dispose();

[Emperor]

Please help...

>I open a template excel file, add some data to it and save the file. I get "cannot create compound file" error.

Here's the code:

protected IWorkbook _Book;
ExcelEngine excelEngine = new ExcelEngine();
excelEngine.ThrowNotSavedOnDestroy = false;
IApplication excel = excelEngine.Excel;
excel.SheetsInNewWorkbook = 5;
_Book = excel.Workbooks.Open("Template Dir/Filename");

string filePath = "Some file path";
_Book.SaveAs(filePath+_FileName, ExcelSaveType.SaveAsXLS);
_Book.Close();
excelEngine.Dispose();

[Melba Winshia]

Hi Emperor,

Thank you for your interest in Syncfusion Products.

Normally this exception occurs if you don't have permission to write the file to the specific location on disk. Could you please check that if you have permission to write the file to disk?

Please let me know if the issue still exists after giving permission to write the file.

Thanks,
Melba