New features in version 6.1 include: Added ability to enter custom number formats for plot axis labels including date and time formats; Date and time formatted spreadsheet data automatically converted to floating point numbers for regression analysis; Added capability to format spreadsheet columns independently of each other; Added LOWESS smoothing and plotting capability to Edit menu; Added Root finding in results window; Added capability for non-graphical operation to output results in DataFit file format; Added ability to save text from the Evaluate tab of detailed results window; Added ability to format cells containing numerical information in detailed results window; Added ability to format cells containing goodness of fit information in detailed results window; Data table in detailed results now supports export of Excel, HTML and delimited file formats; Fit information table in detailed results now supports export of Excel, HTML and delimited file formats; Data Table (Export Data Table) creation now su