How can I work with .rej files (GIT) on Windows after applying the patch? Is there a GUI to work with them?

Question

git

Hello. I applied a very large patch (git) from one large project, into a private forked project, several dozen .rej files appeared. The question is: are there utilities / gui for Windows to work with the generated reject hunks conveniently?
How I work now:
1. I open the .rej file
2. I look at what needs to be added, what needs to be deleted (+ before the line or minus) I look at my code
3. I add or delete this thing and rush from one editor to another.
I would like to:
1. Open the mycode.c.rej file, which will show the mycode.c file and what it would be desirable to insert where
2. Well, then work with it using a convenient editor (preferably like araxis merge style).
I don’t know how to work with .rej files, I always added lines with pluses by hand and deleted lines with minuses, but when .rej files are full after applying a major patch, I personally got tired of adding the same thing that you can it would be in the utility in 90% of cases to do it with one button, if these .rej files could be opened with the merge tool...

Answer 1

did you apply the patch through git?
git mergetool and go!
as a merzhtula - softina to your taste. i know kdiff3 and meld

Answer 2

rej is the output of the regular patch command, if I'm not mistaken?
those. look for patch rej merge tool