The Blueprint Bulk Editor is a powerful tool with quite a few features. To learn all there is to it and to make an educated buying decision, please consider reading the detailed documentation
The Blueprint Bulk Editor allows you to view and edit multiple Blueprint files, ActorComponents, and DataAssets at once in a very convenient spreadsheet-like view. It comes with powerful search/filter features that even allow you to apply logical expressions to your filters ("show me all weapons that deal between 100 and 200 damage but not the one that does 180 damage"). It also comes with a Favorites System and the ability to tint row colors to track your progress or to share them with your teammates ("Hey, can you look at the items I tinted red in the Item Database? I think their values are a bit overtuned."). On top of that, the Blueprint Bulk Editor allows you to export your string, text, float, and integer variables to a CSV file to edit them in third-party spreadsheet programs and then to reimport a CSV file again to overwrite the values in the actual .UASSET files.