Open jpawar opened 5 years ago
Hey, I've had a look at what happens to an Excel file when you password protect it, it looks as though it's being wrapped as a compound file binary.
In theory if we know the storage type we should be able to identify it as an Excel file - I'll have a proper look and see if I can work out what it should be.
The library does recognize xlsx format, however the password protected xlsx is not recognized because the header bytes are different for password protected spreadsheet. Is there a possibility that this feature could be added?