opengl32.dll
This file is not a system component: your graphics driver, not a dll download. Restore it from the source that installed it rather than downloading a replacement.
Do not download this DLL on its own
Searching for a missing DLL by name leads to sites that hand you that single file. It is one of the oldest and most effective malware delivery methods there is, and a system DLL from an unknown source is indistinguishable from a deliberately modified one. There is never a legitimate reason to obtain a runtime component that way.
What it is
The Windows OpenGL interface. Windows ships a basic software implementation of it, and your graphics driver replaces it with the real hardware-accelerated one when you install the driver.
Where you see it: Games and 3D software on a fresh Windows install, or on a machine running the generic display driver Windows installs by default.
Downloading an opengl32.dll into the game folder is the single most common bad advice for this error, and it gives you a software renderer at best. The file that matters comes from your GPU driver. Install the current driver from NVIDIA, AMD or Intel directly, reboot, and the error goes. On laptops with two GPUs, also check that the program is being run on the dedicated card.
Why there is nothing to download here
There is no verified download we can offer for this one, because installing a file is not the fix. The steps above are what actually resolves it. That distinction matters: the sites ranking for this file name are selling a download that would not have helped even if it were safe.