hiteksoftware.com

[melvin]

The unzip task can only unzip all files within the archive. it does not have the capability to filter files within the archive.

You only option would be to:
1) unzip the file to a temp folder
2) run a monitor task to detect the particular extension within this temp folder tree.
3) if the monitor task finds the particular file extension, move the zip file to directory X, else unzip the file.