Password Protected Excel File

by

POI should be able to open both protected xls files (using org.apache.poi.hssf.record.crypt) and protected xlsx files (using org.apache.poi.poifs.crypt). Have you tried these?

If you’re using HSSF (for a xls file), you need to set the password before opening the file. You do this with a call to:

 org.apache.poi.hssf.record.crypto.Biff8EncryptionKey.setCurrentUserPassword(password);

After that, HSSF should be able to open your file.

For XSSF, you want something like:

    POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream("protect.xlsx"));
    EncryptionInfo info = new EncryptionInfo(fs);
    Decryptor d = Decryptor.getInstance(info);
    d.verifyPassword(Decryptor.DEFAULT_PASSWORD);
    XSSFWorkbook wb = new XSSFWorkbook(d.getDataStream(fs));

Full details are given on the POI Encryption documentation page

More Related Contents:

  1. How can I read numeric strings in Excel cells as string (not numbers)?
  2. Best language to parse extremely large Excel 2007 files [closed]
  3. How to read Excel cell having Date with Apache POI?
  4. Embed files into Excel using Apache POI
  5. Apache POI – FileInputStream works, File object fails (NullPointerException)
  6. Apache POI add a Series name into LineChart
  7. Apache poi Excel line chart points
  8. How to set axis’ labels in a Line Chart using Apache Poi
  9. Removing a row from an Excel sheet with Apache POI HSSF
  10. Apache POI autoSizeColumn Resizes Incorrectly
  11. What is the better API to Reading Excel sheets in java – JXL or Apache POI [closed]
  12. Merging cells in Excel using Apache POI
  13. how to read exact cell content of excel file in apache POI
  14. Create Bar Chart in Excel with Apache POI
  15. Excel Cell Style issue
  16. How to insert a row between two rows in an existing excel with HSSF (Apache POI)
  17. Exception when writing to the xlsx document several times using apache poi 3.7
  18. Apache-POI sorting rows in excel
  19. Java POI : How to read Excel cell value and not the formula computing it?
  20. Create a password protected Excel file using Apache POI?
  21. Apache POI evaluate formula
  22. Embed files into XSSF sheets in Excel, using Apache POI
  23. Apache POI Line Chart colors
  24. Java POI the supplied data appears to be in the Office 2007+ XML
  25. Determine MS Excel file type with Apache POI
  26. Make column read-only using apache poi
  27. Read XLSX file in Java [closed]
  28. How to get an Excel Blank Cell Value in Apache POI?
  29. apache POI java.lang.NoClassDefFoundError: org/apache/commons/compress/archivers/zip/ZipFile
  30. Limitation while generating excel drop down list with Apache POI

Leave a Comment