NeoOffice

NeoOffice is a Mac office suite built on the OpenOffice and LibreOffice platforms. NeoOffice allows users to read, edit, and save OpenOffice, LibreOffice, and basic Microsoft Word, Excel, and PowerPoint files.
In 2003, two engineers produced NeoOffice when they first made OpenOffice run natively on OS X. Since then, the NeoOffice developers have continuously introduced features that are not available in OpenOffice or LibreOffice, such as:
• Native Dark Mode
• NeoOffice > Open at Launch menu to open Calc or Impress instead of Writer at launch; • File > Browse All Versions menu to restore previous versions of your documents; • Native file locking to edit files securely in iCloud Drive, Dropbox, or network drives; • Native Mac grammar checking; • Native Mac text highlighting; • Support for Mac Services; • Native floating tool windows