Hi:
I read the topic "where can I find new plugins. Interesting discussion.
For my situation I don't have the same plugin dialog box. I have SMath Studio 0.96 B 4884 installed. It already has a bunch of plugins installed natively.
When I click on plugins from the tools menu I get small popup box with plugins listed on the left side and a brief description on the right side of the box. No plugins or extension manager as the prior questioner had. The descriptions were not very useful, some more description and even a use case would help a lot. (I tried to copy and paste in this post but I couldn't get that to work)

Still, I went to the official plugins list on the extensions part of the forum as well as the public plugins at "https://smath.info/svn/public/plugins/" . I saw a few that I would like to install. I downloaded a couple of them.
One had an extension xxx.sm. My guess is that I copy the ones with .sm and paste them into the snippets folder
The others had a zip file, which included a bunch of xxx.dlls. My guess is that those get copied into the plugins folder, but I'm not sure of exactly how. The plug in Statistical tools has only one plugin so that seems easy. The plugin Release.zip had six .dll's. So do I just copy and paste all of them into plugins, or do I keep them in a group in a separate folder in plugins. If so, how do I call the plugin to work with excel files.

all help appreciated.

all the best
Jojo