The package includes a word processor (TextMaker), spreadsheet (PlanMaker) and presentation tool (SoftMaker), and each of these can open both the old-style and Office 365/2010 files for their equivalent Microsoft application (DOC and DOCX/ DOCM/ DOTX/ DOTM, XLS and XLSX, PPT and PPTX, and so on).
Source: DownloadCrew – SoftMaker FreeOffice 2018 revision 978