I would be very interested in learning how to use basic software like a spreadsheet for business calculations.

spreadsheet 是复合名词，由 spread（展开、铺开）和 sheet（纸张、表格）组成。字面意思是"展开的表格"，指电子表格软件中由行和列组成的计算表格，常用于财务计算和数据分析。