This posting is a bit off-topic from Application Modernization. However, it is related, since everybody has a need to use what are known as "office productivity" tools.
I have been a long-time Linux workstation user. I have enjoyed using the open source operating system and have found it to be, in general, the best environment to suit my needs as a developer at heart. When I was in college I used mostly SunOS and Unix-style environments and thus I always had a soft spot for a good command shell. But I digress.
As a Linux user, my options for "office productivity" tools were somewhat limited. After looking around, I became a Open Office user and have found Open Office to be quite good at documents, presentations, and spreadsheets - the three main elements of an office productivity tool-suite that I use most often. There was nothing I could not accomplish in Open Office that would necessitate my using MSOffice. Interoperability with my colleagues who were using MSOffice file formats (.ppt, .pptx, .doc, .docx, .xls, .xlsx) worked reasonably well, with only minor re-formatting required for most files.
But I was always on the look-out for other tools that could be used. In looking around, I decided a couple of days ago to give Symphony 3 a try. I tried Symphony 1.x in the past and was not impressed with its capabilities. I have to say, though, with Symphony 3, the user interface is much improved, to the point that I think it is more polished than Open Office. Having worked with it for a week or so now, I am thinking that I will switch to using Symphony 3 for the forseeable future. The interface is a bit nicer than Open Office and it's screen rendering seems just as good.
I suggest you give Symphony 3 a try. It's available for Mac, Linux, and Windows and ready for you to try it out.
One more note - I recently had an article published in IBM System Magazine - Mainframe EXTRA edition - see here. The article discusses multi-platform application development and the rising need for application programmers to be multi-platform and multi-language savvy. Enjoy.