Latest questions about "export information"

I have been using Easy Weather for 3 or 4 years, and export my log data on a regular basis, and when I do, the program shows a list of previous exports, so I know what name to call the new one.

How can I export a high quality image? Currently, the export efforts produce only a 204X256 image size. It is way too small. I'm using a Windows 7 machine.