I would like to have something like CityDesk (I paid for that software back in... Y2K?). I remember someone was able to "hack" it to embed articles inside excel

I would like to have something like CityDesk (I paid for that software back in... Y2K?). I remember someone was able to "hack" it to embed articles inside excel sheets: he just used an excel sheet as a template (which was zipped XML) and Citidesk substitued some variables inside the templeate I miss that piece of software.