I found this mysterious file on my computer. What is it? and how can I undo any damage it might have done?

So I found CORE10k Application (.EXE) in my downloads file. I clicked it because I had just downloaded an open source program and thought that it was that. A window flashed open for a minute and then dissipated. I am worried that its some kind of malware or virus but non of my scans picked it up and it doesn’t appear to have done anything.

Is there anyway I can check to see what it did?