determine version of microsoft office with java

Question

I wrote a program that creates a set of data that is outputted to an excel spreadsheet. I was originally using the jexcel library to write the data to the file, but I\'d lik

Answer 1

You can search in the registry for the key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\App Paths

This will probably require some work, as evidenced by this question:

read/write to Windows Registry using Java

Answer 2

If you're willing to dive into the registry (eg with jregistrykey) a translated version of this PowerShell script should do what you want.

Answer 3

One way is to call the Windows ASSOC and FTYPE commands, capture the output and parse it to determine the Office version installed.

C:\Users\me>assoc .xls
.xls=Excel.Sheet.8

C:\Users\me>ftype Excel.sheet.8
Excel.sheet.8="C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE" /e

Here a quick example :

import java.io.*;
public class ShowOfficeInstalled {
    public static void main(String argv[]) {
      try {
        Process p = Runtime.getRuntime().exec
          (new String [] { "cmd.exe", "/c", "assoc", ".xls"});
        BufferedReader input =
          new BufferedReader
            (new InputStreamReader(p.getInputStream()));
        String extensionType = input.readLine();
        input.close();
        // extract type
        if (extensionType == null) {
          System.out.println("no office installed ?");
          System.exit(1);
        }
        String fileType[] = extensionType.split("=");

        p = Runtime.getRuntime().exec
          (new String [] { "cmd.exe", "/c", "ftype", fileType[1]});
        input =
          new BufferedReader
            (new InputStreamReader(p.getInputStream()));
        String fileAssociation = input.readLine();
        // extract path
        String officePath = fileAssociation.split("=")[1];
        System.out.println(officePath);
      }
      catch (Exception err) {
        err.printStackTrace();
      }
    }
  }

You may want to add more error checking and the parsing to extract the Office version from the returned path is left as an exercise ;-)

Answer 4

Take a look at OfficeVer.

You can implement it to your script or use it for code analysis. It's cross-platform much like Java, so compiling it and implementing it directly shouldn't be a big deal. It works by extracting .docx and xlsx files and then reading the version, as well as reading directly from .doc and .xls files. OfficeVer as well has extended their support to .pdf files (current version as of time of writing is 1.03.1)