As long as those spreadsheets/database files are accessible to someone with technical skill, people can pull in the data and use tools to make it more accessible and useful. Ideally, yes, the data is useful to begin with, but as long as it's available, there's nothing stopping individuals with the skills from making it useful.

Of course, there are exceptions: the PDFs that are often provided by the prosecution as part of the discovery process are prohibitively difficult to deal with, and should be considered a violation of Brady vs. Maryland, IMO.