Build 3.0.0.145 of xlsgen adds support for another special number format, namely @ and its variants.

@ is for the content of the cell itsef. But if you concatenate this with some piece of text of yours, such as @ "years", this will display accordingly in cells. This special number format for instance avoids the creation of unnecessary table columns : for adding "years" to cells, many would think of creating a formula such as =A1 & "years", whereas in fact, no such thing is necessary. Just use this special number format and you are good to go.