To cite package ‘datadaptor’ in publications use:

  Wilke U, Wilke W (2025). _datadaptor: Modify Labelled Data Sets With
  Excel Files_. R package version 0.0.0.9000, ,
  <https://gitlab.com/urswilke/datadaptor>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {datadaptor: Modify Labelled Data Sets With Excel Files},
    author = {Urs Wilke and Wolf Wilke},
    year = {2025},
    note = {R package version 0.0.0.9000, 
},
    url = {https://gitlab.com/urswilke/datadaptor},
  }