I have now the .exe translated myself.
But i think the cleanest way is to get the .txt from "FFVII_German_Reworked_beta04.exe" to work
https://drive.google.com/file/d/108Hu_Y5HjGJYs1xGMTNouyJZqHV-2Mdy/view?usp=sharing
if i put this .txt to the hext folder in VII, the game do not more start, it needs sure a fix that it works for 7h and FFNx
but i have no idea how, maybe someone has time and fun to do it. 
Have a Nice day !
:/ I tried to convert that file to the 'hext' of 7th heaven, but i only get text in english ¿?
So, i translate by my own(with a translator program) the ff7.exe of 7th heaven, and it works (but of course if the text dont fit , thats a visual problem, and, to solve it , you must make changes in the 'hext' to change the size of the windows or use a different textfont).
Anyway , i give you my 'hext' file for the 7th heaven,if you want it, and also, i give you the file with the text to translate. If you want , translate it , and put a link, so i can make the same process with that file.
Hext 7th heaven :
https://www.mediafire.com/file/84393d2hqzr2o2k/fichero.txt/fileTexts:
https://www.mediafire.com/file/uwdekfbm9j2jtnd/0_ff7.exe.txt/file