OpenXML White Paper

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1、OFFICEOPENXMLOVERVIEWECMATC45TOMNGO(NEXTPAGE),EDITOR1INTRODUCTIONOfficeOpenXML(OpenXML)isaproposedopenstandardforword-processingdocuments,presentations,andspreadsheetsthatcanbefreelyimplementedbymultipleapplicationsonmultipleplatforms.Itspublicationbenefitsor

2、ganizationsthatintendtoimplementapplicationscapableofusingtheformat,commercialandgovernmentalentitiesthatprocuresuchsoftware,andeducatorsorauthorswhoteachtheformat.Ultimately,allusersenjoythebenefitsofanXMLstandardfortheirdocuments,includingstability,preserva

3、tion,interoperability,andongoingevolution.TheworktostandardizeOpenXMLhasbeencarriedoutbyEcmaInternationalviaitsTechnicalCommittee45(TC45),whichincludesrepresentativesfromApple,BarclaysCapital,BP,TheBritishLibrary,Essilor,Intel,Microsoft,NextPage,Novell,Statoi

4、l,Toshiba,andtheUnitedStatesLibraryofCongress(1).ThiswhitepapersummarizesOpenXML.Readitto:UnderstandthepurposesofOpenXMLandstructureofitsSpecificationKnowitsproperties:howitaddressesbackwardcompatibility,preservation,extensibility,customschemas,subsetting,m

5、ultipleplatforms,internationalization,andaccessibilityLearnhowtofollowthehigh-levelstructureofanyOpenXMLfile,andnavigatequicklytoanyportionoftheSpecificationfromwhichyourequirefurtherdetail2PURPOSESFORTHESTANDARDOpenXMLwasdesignedfromthestarttobecapableoffai

6、thfullyrepresentingthepre-existingcorpusofword-processingdocuments,presentations,andspreadsheetsthatareencodedinbinaryformatsdefinedbyMicrosoftCorporation.ThestandardizationprocessconsistedofmirroringinXMLthecapabilitiesrequiredtorepresenttheexistingcorpus,ex

7、tendingthem,providingdetaileddocumentation,andenablinginteroperability.Atthetimeofwriting,morethan400millionusersgeneratedocumentsinthebinaryformats,withestimatesexceeding40billiondocumentsandbillionsmorebeingcreatedeachyear.Theoriginalbinaryformatsforthesefi

8、leswerecreatedinanerawhenspacewaspreciousandparsingtimeseverelyimpacteduserexperience.Theywerebasedondirectserializationofin-memorydatastructuresusedbyMicrosoft®Office®applications.Modern