If you are looking forward towards calculating the Standard Deviation and Standard Error of the Mean in Excel, please check this article.

Open a new Microsoft Excel 2010 spreadsheet. Click on cell "A1," and enter the first number in the data set you want to get the trimmed mean for.

How to Calculate T-Value From Mean & Standard Deviation in Excel. Calculate t-values in your Microsoft Excel spreadsheet by combining built-in functions with custom formulas. T-values, also known ...