问题
Is there a way to update an excel which is already open on my system using Apache POI and also through vba code running on some other excel?
回答1:
The Apache POI library does not support reading, writing, or executing macros in an Excel document.
Apache stores an internal representation of the worksheet in its memory model. You will have data concurrency issues if you try to have two different applications writing to the same Excel file.
来源：https://stackoverflow.com/questions/22717331/how-to-update-an-open-excel-using-poi