While in NetCommunity, you export form data through the data tab. The file opens in what appears to be a CSV format, but when you click Save As, the default file type is Unicode. You would like the default to be CSV.
The default file type of Unicode is controlled by Excel, and cannot be changed within NetCommunity. Unicode is in place to support special characters within the export. To change the file type, utilize Save As, and save the file as CSV.