Are you saying that you want to know how to make a web page with three columns of text on it ?
Or do you want to apply a three column layout over many web pages ?
Next we'd need to know if you have any web designing software and, if so, which products and which versions ?
Or are you willing to work with HTML code ?
I'd rather you took the "time to explain" than not.
As it stands I've no real idea what it is you want to do, nor whether you have eny suitable software to do it with.
In brief, a three column layout may be achieved in one of several ways. You can create three equally sized cells in a row of a table and set text into each table cell. You can format the text using CSS without having to use HTML code for the table and the CSS will position the text into columns. Some web authoring programs like FrontPage have a feature that allows you to convert a large body of text to tables. This gives you the option of the number of cells, rows, columns and whatnot required for your layout.
If you supply some detail of what it is you'd like to do one of us will try to offer a solution.