How about implementing dispatcher. it will release unmanaged resources used by your application.
Or something like this using dispose for the reference.
PS: Does both studio has same excel packages version?. Can you update if available and try.
How about using workbook activity not within excel scope.
Anil_G
Ajay_Mishra
pravallikapaluri
postwick
AJ_Ask
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vignesh.maruthappan
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