git - Urgent help: How to recover files that have been emptied (not deleted) due to misuse (batch changes)?

Question

Recently, I manually translated the entire document of electron on github. It took a week to translate the api, and it took an afternoon to finish the document with the largest volume and the most content. But the tragedy is that the symbols were not backed up in time before batch modification. , it was cleared by the batch software due to encoding issues. Re-translation is really tiring. I wonder if there are any advanced methods to restore it.
Note that the system does not enable the function of historical versions.