Bing found the following results
Nintendo (NES) Emulators For Windows - RetroEmulators.com
NES File - What is a .nes file and how do I open it? - FileInfo.com
How to Use an Emulator and Roms: 8 Steps (with Pictures) - wikiHow
NES File Format - Nintendo Entertainment System ROM File
How to Play Your Favorite NES, SNES, and Other Retro ... - How-To Geek
NES File: How to open NES file (and what it is)
NES Nintendo emulator for Windows 10 or 11: Nestopia UE
How to play NES games - My Abandonware
Nintendo Entertainment System - Dolphin Emulator Wiki
Nestopia 1 - Supported File Formats - FileInfo.com