How to create single .exe file

 To create a single executable file, you can use a tool called a "packager" or "bundler." These tools take all of the necessary files for a program and package them together into a single executable file. Some popular packagers for different programming languages include:

1. PyInstaller for Python
2. cx_Freeze for Python
3. cx_Packager for Python
4. py2exe for Python
5. Freeze for Python
6. NSIS for C/C++
7. InstallShield for C/C++
8. Inno Setup for C/C++
9. Advanced Installer for C/C++
10. WiX for C/C++
11. Electron Packager for JavaScript

You will need to consult the documentation for the specific packager you choose to learn how to use it.