Abstract: A method and device for processing and analyzing data on a personal computer which can be implemented using software which works in a Microsoft Excel environment or as a standalone software which allows users to import, filter and/or analyze a large quantity of data in an Excel worksheet; the data can be imported from disparate sources (including text files, SQL databases and Excel files) and, once imported and stored in the computer's memory, can be displayed in a single columnar table (even if they come from different columnar tables which have disparate ordering), as well as filtered, ordered, grouped, summed and/or manipulated mathematically extremely quickly with the possibility of creating dynamic graphics and/or tables relative to various parameters; the software is compatible with Microsoft Excel 2003, Microsoft Excel 2007 and Microsoft Excel 2010 and can be used within the Windows XP, Windows Vista and Windows 7 operating systems.