Downloading to Endicia.com and Stamps.com
Note: You won't be able to use these features until you actually have checkout records present in your Sold folder. For more information, click here.
You may download all your checked-out transactions to a format that can be loaded directly into Endica.com and Stamps.com.
Just take these steps:
Go to your Sold Folder.
Check boxes for the checkout items you want to use.
Click "Download to Endicia" or "Download to Stamps.com"