QTXL is a real-time streaming quotes interface between QuoteTracker and Microsoft Excel. QuoteTracker is a Windows program that integrates with various data feeds, brokers and financial sites to provide you with streaming real-time quotes and everything else you may need to trade in today's market. QTXL downloads real-time streaming quotes from the data sources available at QuoteTracker into Excel and thus allows using a wide range of features available in Excel environment to perform real-time quotes analysis and data visualization. It is possible to build charts, calculate technical analysis functions using technical analysis software like AnalyzerXL, create trading systems without interruption of the data feed as tick-by-tick data is accumulated in Excel. Quotes can be downloaded from such prominent data sources as TD AMERITRADE, IQFeed, eSignal, MarketFeed, PCQuote MarketSmart etc. The list of data sources is available at http://quotetracker.com/qsources.shtml