EDIT: extracting is easy enough but I cannot understand how to compress again, have tried various things. Google translator gives "ferramenta.exe name> C-file with the file name> textos> le_strings original>" wth does "C-file with the file name" mean? To extract: ferramenta.exe -E <le_strings_file_...

I found a tool for extract/compact le_strings files:

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Note: google translated (Brazilian site)

thx