Yeah, I have seen this in person. What is more sad, is that the scientists using Excel are aware of the limitation but they just don&#x27;t want to spend time learning to work with R or Python and csv files and version control systems, after all they rather spend this time for grant seeking. For them convenience trumps reproducibility, they just redo the analysis until one one could get the &quot;right&quot; result. This indeed is very bad for academia and drives smart people away from postgraduate school. I also encountered use of proprietary software that scientist written themselves just to prevent reproducibility and make it harder for competing research groups. How this people can get published in high impact papers is beyond my understanding.