About a year ago I read the OpenDoc specifications [1] (which for some reason are not linked to from the Wikipedia entry on OpenDoc). What struck me was how mu

About a year ago I read the OpenDoc specifications [1] (which for some reason are not linked to from the Wikipedia entry on OpenDoc). What struck me was how much of the complexity was to allow different vendors to provide differing amounts of services for comparable components - all sorts of fallback mechanisms for rendering the product of one spreadsheet component if you have a less complete spreadsheet component, for example. [1] https://www.omg.org/technology/documents/vault.htm https://www.omg.org/technology/documents/vault.htm - under Retired Specifications at the bottom of the page, under Compound Presentation & Interchange