This feature is useful for testing what conditions have to happen to get a desired result. All the cells in between are hilighted. The mouse pointer will change to a double-headed arrow. You can then drag the line to change the column width or row height, or you can double click on the line to automatically select the best size for that row or column. To use it hilight the cells you want to format, choose the autoformat option, then choose the style you wish to use from the examples provided.
Databases are lists of information.
The database functions in Excel require the data to be in a specific format. The data must be organized in rows, with titles at the top of each column. Each row contains a different data record. Copy the titles to a different part of the spreadsheet. Hilight the titles, and enough lines under it to contain the extracted information.