Accounting Models Click on a model link below to view or download the model. The models with a .ltx extension are formatted for traditional LINDO, .lng and .lg4 for LINGO and .xls for What'sBest!. BONDS.xls CAPBUDX.xls CASHBALN.xls DEMRND.lng DNRISK.lng DNRISKWB.xls FINPLAN.ltx MARKOW.c MARKSCEN.ltx MARKWTZ.ltx MFPLAN.ltx OPTION.lng OPTIONB.lng OPTONFX.lng PBOND.lng PORTCARD.lng PORTCOST.xls PORTHEDG.lng PORTMTCH.lng PORTSCEN.xls PORTVAR.lng PRTSCEN.lng SAMPLE.lng SAMPLE2.lng SAMSIZ.lng SCENARIO.ltx SHADES.lng SIMXPO.lng SIMXPOWB.xls SMOOTH.xls STOCHAST.ltx TAXPLAN.ltx WHATIF.lng