Original credit to Leen Remmelzwaal (original code)
You need to have latex installed, download here
Author: Leen Remmelzwaal
Written: August 2019
License: CC BY
A Windows BAT script to convert LATEX reference from .bib file format to bibitem format.
Install Latex editor for Windows.
Copy the contents of your document's .bib file into the input.bib file in the repository.
Double click the file convert.bat
The results will appear in the file: output.bbl
Source: https://tex.stackexchange.com/questions/124874/converting-to-bibitem-in-latex