RT Journal Article SR Electronic A1 GAŠPERANOVÁ, Agneša T1 ANALYZING BIG TABLES AT SPREADSHEET EXCEL JF Journal of Technology and Information Education YR 2010 VO 2 IS 2 SP 62 OP 67 DO 10.5507/jtie.2010.037 UL https://jtie.upol.cz/artkey/jti-201002-0013.php AB The electronic spreadsheet is basic tool for business modeling, simulation and decision making. Important part of spreadsheet using is processing large tables, especially computing subtotals. This paper presents the course of creating subtotals, witch author used for teach-in Excel at academic year 2009/2010 at The Faculty of National Economy, University of Economics in Bratislava.