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