The Java Battle Calcs (different versions) by KaHaR:
AstroEmpiresCalcIcons20100826.jar
AstroEmpiresCalcIcons20101121.jar
KaHaRs_Battle_Calculator-Version_1-21-2011.jar
AE 2.0 Level and Maintenance Calculator
AE_level_maint_calc.ods - LibreOffice
or
AE_level_maint_calc.xls - Excel (old style)