By default, all software supports multiple file extensions. The Sims 2 Double Deluxe supports at least 4 different file extensions. The basic files that The Sims 2 Double Deluxe supports are .SIMS2PACK. However, not all of the extensions listed on the list are always used to save the effects of work in The Sims 2 Double Deluxe. Very often, files with such extensions are used as source data files used by The Sims 2 Double Deluxe.
The Sims 2 Double Deluxe can be used to convert file formats between the file extensions listed below. You can open a file with one of the file extensions below via The Sims 2 Double Deluxe and try to save it in another file format, also supported by The Sims 2 Double Deluxe.