To cite package ‘openxlsx2’ in publications use:

  Jordan Mark Barbone and Jan Marvin Garbuszus (2024). openxlsx2: Read,
  Write and Edit 'xlsx' Files. R package version 1.10. URL
  https://github.com/JanMarvin/openxlsx2.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {openxlsx2: Read, Write and Edit 'xlsx' Files},
    author = {Jordan Mark Barbone and Jan Marvin Garbuszus},
    year = {2024},
    note = {R package version 1.10},
    url = {https://janmarvin.github.io/openxlsx2/},
  }