>>I am using Windows 10.
>>
>>I need to compare 2 files. They are in TFS but in different branches.
>>
>>I did a quick search locally for Beyond Compare or WinDiff but both searches came with links to Download, so I don't have anything installed locally, I think.
>>
>>Do you have advice for me as what to use to compare the versions?
>
>I use online tools for that. Here is one: https://www.diffnow.com

Thanks. My files were very big and it shows 'No difference'. I am not sure I can trust 100% to this.

In any case, this is very helpful.