Might be a good idea to find out if we can use the generated pictures outside of the forum (or at all), there might be some weird issues around that...I was actually mistaken, the "Location" field is where the applicant is living. So we don't even have the processing centre as information. We don't have online vs. paper in the spreadsheet.
As is, in the data that I'm keeping right now, the _most_ nominative information is date of application sent.
The process is simple if you know the R programming language: save each sheet of the Excel file as a .csv file, import to R (skipping the first two lines), combine and process. The .csv files take some cleaning up, because things like "#VALUE!" or the errant "Excel thinks this is a date" cell will make R think a column is text for one file whereas it correctly thinks it's numbers for the rest, and it won't be able to join the files.
Luckily for us, this forum is hosted on a law team's website, so... maybe we could start there if we had a real interest in making the anonymized data more publicly available.
Maybe I am overthinking it..