protected String getPassword() {
        if (passwordProvider != null) {
            return passwordProvider.getPassword(parentMetadata);
        }
        return null;
    }
Returns the password to be used for this file, or null
if no / default password should be used
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/main/java/org/apache/tika/parser/microsoft/AbstractPOIFSExtractor.java