Data would be recoverable in that case by reading the flash chips directly with a flash chip reader. Eventually the data may get overwritten, or the blocks may be swapped with those in the spare area in which case the data is retained indefinitely. Only the SSD firmware knows how logical disk blocks map to actual physical locations on the flash chips. This is part of SSD's wear leveling algorithms. When you overwrite a file on a SSD, the SSD firmware just marks the current blocks of the file as available, leaves the data on it, and assigns other, less often written to, previously available blocks to the file and writes the new data to that instead. Any 3rd party program that claims it can erase the data of a single file is a scam.
You can only erase the data of the entire disk. Seeing as you have a SSD, you can't reliably erase the data of a single file.
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