“X-Cart Google Base Data Feed is X-Cart contribution which would help you export easy your products into Google Base engine.
Main features:
… easy to use and configure
… multilanguage support
… multicurrency support
… ability to export only selected categories
… ability to include/exclude products marked “”out of stock”"
… ability to include/exclude products with zero quantity
… capability to include/exclude products with zero price
… capability to strip HTML from Product Names
… capability to strip HTML from Product Descriptions
… capability to set default shipping cost
… ability to limit number of products exported
… ability to set currency that is used during export
… ability to customize name of the export file
… inline text recommendations for fast initial configuration
… ability to automatically upload feed via FTP
… ability to send feed via email
… third party sales channel tracking (Google Analytics, WebTrends, OneStat, 123LogAnalyzer, Netmining etc)
… optional GZIP compression of feed contents
… additional Live Product Feed URL options
… ability to validate feeds (XML-based feeds only)
… ability to store feed on your server
… multiple export configurations
… preconfigured Google Analytics support
… supports most of standard-compliant SEO-friendly URL modules/addons
… Click Tracking / ROI Tracking
… online documentation and Quick Start instructions
… and more”