I got a folder with a large amount of files with different suffixes in several sub folders.

My automator workflow works as follows:

1. Ask for Finder Items
2. Get Folder Contents (sub folder option checked)
3. Filter Finder Items (for a specific file-suffix)
4. Copy Finder Items

This works like a charm. But all files are copied in the same root destination folder. I need to keep the the sub folder structure. For Example:

```
sourceFolder
    subfolderA
        fileA.jpg
        fileB.xls
        fileC.xls
    subfolderB
        fileC.jpg
        fileD.xls
        fileE.xls

```

Expected result (filter for file suffix .xls):

```
destinationFolder
    subfolderA
        fileB.xls
        fileC.xls
    subfolderB
        fileD.xls
        fileE.xls

```

Current result:

```
destinationFolder
    fileB.xls
    fileC.xls
    fileD.xls
    fileE.xls

```

**Update**

I'm a developer. So a shell or AppleScript will be also accepted. :)