I have been using and referencing standards for a long time. They are great. C# is an ECMA standard for example as are parts of .Net which is how project Mono has managed to come great strides in delivering part of the .Net experience on non-Microsoft platforms. Also my 1st job out after University was writing document converters. So there are two things here - one, what is wrong with more than 1 standard - we have several for networks, several for character sets. Often one standard will work where another will not. Nearly always one standard is driven by an interested party. Open Office is very keen to see greater adoption of ODF. Microsoft is very keen to seen greater adoption of OpenXML. OpenXML is already a European standard (ECMA) and one of the nice things about that is the stability you are offered if you are developing against it. There is no requirement to have Office to use this file format. OK, so we could say "lets not use the European standard and create a similar one, but not quite the same"...