Question Discussion & Solution

There is no option to set page border in Excel.

An array formula is a formula that can perform multiple calculations on one or more of the items in an array. We can think of an array as a row of values, a column of values, or a combination of rows and columns of values. Array formulas can return either multiple results or a single result. For example, we can create an array formula in a range of cells and use the array formula to calculate a column or row of subtotals. We can also place an array formula in a single cell and calculate a single amount. An array formula that includes multiple cells is called a multi-cell formula, and an array formula in a single cell is called a single-cell formula.

Right click the column heading you want to delete and select delete from the shortcut menu in Excel 2003.
From 2007 and Higher version Home > Delete > Delete Sheet Columns.

The Chart wizard term data categories refers to a horizontal axis.

Excel offers the following major chart types ?
Column Chart
Line Chart
Pie Chart
Doughnut Chart
Bar Chart
Area Chart
XY (Scatter) Chart
Bubble Chart
Stock Chart
Surface Chart
Radar Chart
Combo Chart