Commented Unassigned: NPOI will throw exception when clone sheet With template file .xlsx​ (office 2007) have image in header [11899]

With template file .xlsx​ (office 2007) have image in header, NPOI will throw exception when clone sheet or only read and write file. But with .xls format (office 2003) NPOI work well.
Comments: ** Comment from web user: pondomaniac **

Hi i Have the same problem with an image in the Footer it was working well on .xls, i hope we will find a solution soon.