
Merhaba Yukarıdaki hata konusunda yardımcı olabilir misiniz?

Merhaba Yukarıdaki hata konusunda yardımcı olabilir misiniz?
Hi SedefAkda,
From the screenshot, it seems that there are something wrong about converting the type. Maybe you can refer to CellStyleCollection Class and InstanceDescriptor Class, then check if there is something wrong in your code.
Best Regards,
Dylan
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