问题
I have faced a big and inconvenient problem with Excel spreadsheets that have internal data connections (queries that selects ranges of the own workbook) in them.
I wiil start by showing the problem e exposing how to reproduce it.
Problem: if I have some internal connetion and another instance (pay attention, instance, not other workbook) was already open, when refreshing that connection, the same workbook (which have the internal connection) is instantly opened in readonly mode in another window...
Why this occurs? The problem is that I'm developing a .NET automation application for Excel and this behavior breaks some process flow (because the readonly file stays open and sometimes it causes a non refresh in the original workbook)
To solve this problem I began to use the same instance if it is already open, but this is not the best solution because I need to handle the concurrency when running several VBA macros in the same instance via .NET Interop.
Here a workbook for those who wish to test this issue that I presented (just change the string connection inserting the new file path in your computer):
Excel File for Test
I recorded a video to show you the issue with more details and how to reproduce it. Please, take a look:
Video
I hope someone knows how to solve this problem because I've been searching for this several days...
Thanks
Obs.: The Office version is 2013
来源：https://stackoverflow.com/questions/32540576/unexpected-behavior-when-refreshing-internal-data-connections-in-excel