Created Unassigned: NPOI Save Excel unable open in iPhone [13251]

Hi,

I'm new to the NPOI, I've generated the excel file using NOIexamples and the version NPOI 2.1.1.

And I've attached the generated excel in email which unable to open in the iPhone, getting the below message during open the attached excel,

___test.xlsx

Office Open XML spreadsheet 1.1 MB___

Our requirement is to notify the staffs thru email with the generated excel attachment.

Kindly advise and if possible, provide the sample code for the same.

Regards,
Kumaran