Excel
<p><strong>Create spreadsheets and calculations, graphing tools and pivot tables.</strong></p>
<p><strong>A <em>pivot table</em> is a table that summarizes data from another table, and is made by applying an operation such as sorting, averaging, or summing to data in the first table, typically including grouping of the data. A trivial example is a column of numbers as the first table, and the column average as a pivot table with only one row and column</strong></p>