Bad files can cause two problems for your files. The first thing is that while the system is writing data, it notices that there is a bad block. At that point, I stopped writing. Second, I noticed after writing that the file is no longer readable. In the first case, your file has not been written at all. There is no file corruption. The system automatically resolves such errors. Or you can save the file to another location. Or save it to a cloud storage device. Then restart your pc and save the file again. In the second case, it is not easy to recover the data. You can try data recovery methods from a failed SSD. But do not expect to get it back. The data in the bad blocks is not static.