我如何将表格中的数据与表格中的数据进行比较?

As I have some columns with data in sheet 1 & the same column with approx. same data except some in sheet2 .So I want to compare the data from sheet1 to sheet2 & it should show something what will be easy that data is "Differ" on those cells from sheet1 to sheet2 .As I have some columns with data in sheet 1 & t