ErrCode

While I agree that the suggestion to use Range and array based manipulation of multiple cell values is the way to go, I'd like to understand why OP is getting...

Made these changes to `Module1::Main`: - execute the `LateBindingWay` and `NetOfficeWay` methods sequentially to remove any bias from poor thread scheduling/execution (just in case - e.g. if there are less...

@maliutin Understood. I'm merely curious. Looking at OP's code, both `LateBindingWay` and `NetOfficeWay` methods are doing equivalent calls to Excel. This seems to me a legitimate comparison of the overheads...