1 Open a game file
Pick mhfdat.bin, mhfpac.bin,
mhfinf.bin or another text file from your game's
dat/ folder.
2 Translate
Type your translation under each original text. Keep markers
such as {c05} and {j} where they belong. Your work is saved in
this browser and included when you build in step 3.
Download the sections you want to translate as CSV and JSON files.
Fill in the target column and leave rows you are not
translating empty.
3 Build the translated file
Add your translated CSV or JSON files, or a translation
release from MHFrontier-Translation
(translations-fr.json.gz, for instance). They must match the game file
you opened in step 1.
Building mhfdat.bin takes about
40 seconds, smaller files a few seconds. Replace the file in your game's dat/
folder with the download, and keep a backup of the original.