What is the main purpose of the ewsManage_Downloader tool described in this article?

The ewsManage_Downloader tool automates downloading emails and extracting attachments from Exchange servers using SOAP XML messages with NTLM authentication. It supports both plaintext and NTLM hash logins, keyword and date-based searches, and can specify download quantities. This is a practical extension of the concepts covered in our previous Exchange Web Service (EWS) Development Guide and Exchange Web Service (EWS) Development Guide 2 – SOAP XML Message.