Hi,
I need more specific information to sharpen my bid.
Where is your product informations are stored, in a database (mysql,access, mssql etc), in a file (xml, csv etc.) or ?
If you're using web based cms or ecommerce script(like woocommerce, openchart etc.), what is its name and version?
If you're using desktop based application, what is its name and version?
Do you want to create(and update) xml file manually or automaticly on daily (or hourly, weekly etc) basis?
Regards,
Turker.