The newest edition of stat transfer is 10 (for mac) butl only trial version available.
However, for stat transfer 9, we can rename the _license.dat to license.dat.
ps:
1.stat transfer 9 could download from [http://www.stattransfer.com/downloads/mac_version_9_download.html]
2.path of _license.dat: [Applications/StatTransfer9/StatTransfer.app/License]