Almost all my office suite use involves interacting with project sponsors. This runs from writing proposals (internal finance people want Excel spreadsheets, a

Almost all my office suite use involves interacting with project sponsors. This runs from writing proposals (internal finance people want Excel spreadsheets, and sponsors often require Word format) to presenting results at review meetings (PowerPoint is the norm). The consistent theme here is that MS formats are implicitly required. For that, I tried OpenOffice for a while, but just ran into too many minor glitches. For more formal writeups of results, I get to use LaTeX. Note we almost never produce plots using Excel; we tend to use R, and embed a resulting PDF in the Word or PowerPoint document.