How to view STL files

Iv downloaded a couple of STL files and not 100% what they look like is there anyway of viewing them ???

can either download and install a Free slicer like prusaslicer or cura.

or the basic windows 3D viewer should open them.

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If you don’t want to install anything and the file is not sensitive, just upload it to a 3d printing service and you can view it there
I use either of these: