To cite package ‘openxlsx’ in publications use:

  Schauberger P, Walker A (2024). _openxlsx: Read, Write and Edit xlsx
  Files_. R package version 4.2.7.9000, ,
  <https://github.com/ycphs/openxlsx>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {openxlsx: Read, Write and Edit xlsx Files},
    author = {Philipp Schauberger and Alexander Walker},
    year = {2024},
    note = {R package version 4.2.7.9000, 
},
    url = {https://github.com/ycphs/openxlsx},
  }