Windows 10 includes a tool to compare files, and here's how to use it.

[Windows Central]

Do you need to compare similar files for changes? Here's how on Windows 10 without third-party tools.
On Windows 10, "fc" is a command-line tool that comes built-in to the system, and it allows you to compare two similar files to determine how they changed over time. Usually, fc will be helpful for comparing simple text files, determining the changes made to a script, detecting if a file has been modified, and similar scenarios.
The tool can compare two similar files or the newest version against all the other files in the same location. And it includes options to examine the changes at the text level, or in Unicode, ASCII, or binary mode.

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