If a cell contains a formula or number you can name the equation by selecting the cell to the left hand side of it, entering a text and clicking on the "Name Equation" button on the XLC toolbar. The button subscripts all characters following the first and adds " =" (if its not there already). Any character preceded by "|" will be converted to a Greek character. You may like to view the Greek alphabet by "Show Greek Character Shortcuts" button from the XLC toolbar.

Play the flash movie below to see how easy it is to name equations. Use the green arrows to move forward and back through the tutorial. Let's start with a conventional spreadsheet with formulae already entered. 

ADVANCED: Every time equations are redrawn each named cell will be checked to ensure that the name formatting is applied correctly. The default behaviours ensures that there is no confusion when multiplication signs are removed. If you do not wish enforce this naming convention (e.g. if you would like equations to read like PRICE = QUANTITY x TIME) you may end the Named Cell with just a single "=" character rather than the usual two " =" characters. You should also set the EQS() parameter "Multiplication= 1" so that multiplication signs are always shown.

E.g. XLC will enforce automatic subscripting of a cell named "A₁ =" because there is a space before the final "=" character; XLC will ignore the formatting of an unconventionally named cell like"COST₁=" which will be drawn into equations with this formatting because there is not a space before the final "=" character.