Unable to open recovered files

After the scan, the recover task was successful but i am unable to open any file (PDF, XLS, DOC...). The files seems damaged

I meet this problem with my internal hard disk (SSD) and with a USB drive

On the SSD the clusters will be mapped to a zero-filled page on delete with TRIM, so you will be recovering zeroes. There's not enough info on the attached USB drive to make a guess.

2 hours ago, Augeas said:
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		On the SSD the clusters will be mapped to a zero-filled page on delete with TRIM, so you will be recovering zeroes. There's not enough info on the attached USB drive to make a guess.
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Thank you, thé USB drive has been formated and 2 partitions were created (one boot partition => windows 10 installer)

Nobody can help me please ?