If you need to track your data transfer on your Amazon S3 account, bucket explorer provides you bucket logging service. To enable logging on any specific bucket you may follow these steps :

Step [1].
Select the bucket, on which you want to enable logging like I have chosen "MinalyzerComments" bucket for logging.
Step [2].
Right click and choose "Bucket Logging" option.

Step [3].
You will get the following dialog box. In this box, you will need to specify "Log To" bucket (folder) where your selected bucket's (MinalyzerComments) log will be saved. After choosing the "Log to" folder, click "Ok" button to finish.

Step [4].
Now logging is enabled on your selected "MinalyzerComments" bucket, and its log will be saved in "Log To" bucket (25julyexe).