This is a tool used to decrypt password protected xlsx and xls files using the command line
Simply run mvn package.
You will see the fully functional and portable jar: ./target/decryptor.jar
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Move the jar to the same directory as your encrypted excel file
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Run the java jar with 3 arguments, input file, output file, and password.
Example:
java -jar decryptor.jar encryptedFile.xlsx unlocked.xlsx My$ecretpassw0rd101 -
You now should be able to open the unlocked excel file without a password