I don't think it is possible to add sheets to a CLOSED excel workbook using sas. Alos I don't thin sas can preserve the style of yhe workbook. Note: Note sqlite has csv read and write commands, ...
https://github.com/rogerjdeangelis/utl-altair-slc-language1-drop-down-to-open-source-spss-and-execute-postgresql-query https://github.com/rogerjdeangelis/utl-altair ...