Right-click the folder in which you want it to be in Solution Explorer , select Add-> Existing Item ...
This overlooks a lot of the nice update / check performed when creating a new VS project from existing files, but is one way to structure a large number of files.
I would prefer to manage them in Solution Explorer , but I feel that it is so obvious that you either approve or have an excessively large number of files to search and sort them with the small Explorer solution .
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