When several files are open in Solid Edge, switching to each for closing can be time consuming, especially with large files. Closing a file directly without having to 'switch' to it and wait for the graphics to update can be a time saver.
I have seen this for myself, though on poor hardware, and thought of writing a small utility to selectively close checked ones from a list of all open files in Solid Edge.
The Refresh button can be used when files have been opened or closed in Solid Edge manually while the program is still running.
The download link for the program and its source code is at the end of this tutorial that also describes how the utility was made so you can understand what goes under the hood and possibly create your own version of the program using the code.