Documents, spreadsheets and slides. A desktop app for Windows.
Windows SmartScreen will warn you the first time, because the installer is not code-signed. Choose More info then Run anyway.
Headings, lists, tables, images, links and page breaks. Find and replace. Export to PDF or HTML.
A real formula engine — 100+ functions, cross-sheet references, fill handle, sorting and charts. Import and export CSV.
Layouts, themes, text, shapes and images you can drag and resize. Full-screen presenting on F5.
.ofdoc,
.ofsheet, .ofslide. Double-click one and it opens.