Vendor Neutral File Formats?

timmyv asks: "I have recently been tasked with developing a corporate wide policy that will standardize all employee created documents on vendor neutral file formats. OASIS is good in theory, but I haven't been able to locate enough concrete examples of policies or implementation schemes that work at a corporate level. Does anyone work at a company where documents can only be saved as RTF, HTML, etc. or have any experience with this type of problem?"