If you are trying to play PS3 games on your PC, follow the standard, safe procedure:
However, the filename you searched for suggests an older or repackaged version of an emulator that might be bundled with system firmware. Here is what you actually need to know about PS3 emulation and firmware version 1.1.7. Download Bios.ps3.emulator.v.1.1.7.zip
If you see a website offering a download link for "PS3 Emulator v1.1.7 Setup.exe," close the tab immediately. The only safe emulator is RPCS3, and it never bundles a BIOS file. If you are trying to play PS3 games