PerfectXL Compare

This is a tool developed by a small team in the Netherlands. It's a standalone application that generates a simple, concise, easy to understand overview of the differences between 2 Excel sheets. It can also handle even the most complex Excel files.

"PerfectXL Compare is a spreadsheet comparison tool that compares Excel Files and provides users with a detailed overview of all differences between two versions of an Excel spreadsheet. We track differences back to user actions, reporting only true changes."