ZK Spreadsheet is an open source embeddable web-based online spreadsheet that delivers the rich functionality of Excel within browsers using pure Java. (Moved to http://code.google.com/p/zkspreadsheet/ since ZK Spreadsheet 2.0)
convert XML to Excel file tool. Use XSLT and Xpath in XLS file, convert xml file to XLS file. You can defined format in XLS file, and write xslt in XLS file.
TrinkaFive is a simple yet sophisticated bookkeeping and project managment software for all sizes of businesses. Included (but not part of its main intent) is a tarot magick utility for casting prosperity charms and sigils. Currently being programmed.