By default, all software supports multiple file extensions. 20-20 Worksheet supports at least 1 different file extensions. The basic files that 20-20 Worksheet supports are .TEMPLATE. However, not all of the extensions listed on the list are always used to save the effects of work in 20-20 Worksheet. Very often, files with such extensions are used as source data files used by 20-20 Worksheet.
20-20 Worksheet 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 20-20 Worksheet and try to save it in another file format, also supported by 20-20 Worksheet.