Adding a new column to either an entire spreadsheet or just a portion is an easy thing to do in Microsoft Excel. Here's how.

Excel refers to rows by number and columns by letter, starting the first row at one and the first column with "A". For some purposes, this is fine, but you often want to add your own column labels ...

Microsoft Excel 2010 can convert a worksheet to a data table to help you quickly analyze your related data in formatted rows and columns. When you need to expand the table layout, apply the Home ...

This illustrated walk-through (with a demo worksheet) shows how easy it is to create a multi-column search solution using validation lists and conditional formatting.

You can split cells into columns in Excel using the "Text to Columns" tool, which is a great way to organize lots of data.