[C #] after the Office application is called, the program will not exit.

I have been using editing to operate Office products, and I will certainly have a similar problem. Especially when using. net for development.
Environment:
A c #. net service program (the same is true for an application)
An excel file to be processed
Purpose:
C # operating Excel files
Symptoms:
In the process manager, you can find that when your application has completed the Excel operation, but the Excel process is still active.
That is to say, the application does not fundamentally release Office resources.

If you are the same as me, read the knowledge base document in workshop!

Use the Visual Studio. NET client to run the automation function without exiting the Office application.