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I have sent a large (>1GB) binary file to a friend over a slow metered data plan and now I need to send the second version of the same file only slightly changed. I want to send only the delta/diff-ed part of it to save the data plan and I want the recipient to easily patch it. We both are using Windows 7. What is the easiest and the most efficient way to do this?

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  • Have you searched Binary Diff? There are a number of software packages, but this site isn't for software recommendations I'm afraid.
    – Jonno
    Jan 25, 2016 at 14:00
  • Or just use Dropbox, it will only push changed blocks.
    – Linef4ult
    Jan 25, 2016 at 14:06

1 Answer 1

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I used xdelta and xdeltagui for Windows to make an XZ-compressed patch file and apply it at the recipient's.

There is another XDelta GUI too, but I have not tested it.

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