OK... first up you need MS Excel or a package that can read Excel spreadsheet files... because that's what it is - a lot of names typed into a spreadsheet page, in alphabetical order covering four columns.
And that's all it is.
If you can manipulate spreadsheets, you could code up some kind of randomiser; otherwise you have to just read down the page until you see a name you like. They all seem to be given names (some could do service as family names).
Using a spreadsheet to generate names for NPCs, populate townships and so on could be a neat idea... but you do need to do more than just type in a list of names.