Content and Relationship Types

Every part in an Open XML package has a content type (a MIME type identifying what kind of content the part holds) and is connected to other parts through relationships (each identified by a relationship type URI). OpenXmlSdkTs provides two lookup objects that enumerate all standard types.

ContentType

The ContentType object maps human-readable property names to their full MIME type strings.

Type Aliases

• ContentTypeKey -- Union of all property names (e.g., "mainDocument", "worksheet", "slide").
• ContentTypeValue -- Union of all MIME type string values.

Usage

import { ContentType } from "openxmlsdkts";

// Query parts by content type
const parts = await pkg.getPartsByContentType(ContentType.mainDocument);

// Use when adding a new part
await mainPart.addPart("/word/comments.xml", ContentType.wordprocessingComments, "xml", xDoc);
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All ContentType Properties

The following 87 properties are available on the ContentType object:

Property	Property	Property
calculationChain	cellMetadata	chart
chartColorStyle	chartDrawing	chartsheet
chartStyle	commentAuthors	connections
coreFileProperties	customFileProperties	customization
customProperty	customXmlProperties	diagramColors
diagramData	diagramLayoutDefinition	diagramPersistLayout
diagramStyle	dialogsheet	digitalSignatureOrigin
documentSettings	drawings	endnotes
excelAttachedToolbars	extendedFileProperties	externalWorkbook
fontData	fontTable	footer
footnotes	gif	glossaryDocument
handoutMaster	header	jpeg
mainDocument	notesMaster	notesSlide
numberingDefinitions	pict	pivotTable
pivotTableCacheDefinition	pivotTableCacheRecords	png
presentation	presentationProperties	presentationTemplate
queryTable	relationships	ribbonAndBackstageCustomizations
sharedStringTable	singleCellTable	slicerCache
slicers	slide	slideComments
slideLayout	slideMaster	slideShow
slideSyncData	styles	tableDefinition
tableStyles	theme	themeOverride
tiff	trueTypeFont	userDefinedTags
viewProperties	vmlDrawing	volatileDependencies
webSettings	wordAttachedToolbars	wordprocessingComments
wordprocessingTemplate	workbook	workbookRevisionHeader
workbookRevisionLog	workbookStyles	workbookTemplate
workbookUserData	worksheet	worksheetComments
worksheetSortMap	xmlSignature

RelationshipType

The RelationshipType object maps human-readable property names to their full relationship type URIs.

Type Aliases

• RelationshipTypeKey -- Union of all property names (e.g., "styles", "image", "slide").
• RelationshipTypeValue -- Union of all relationship type URI values.

Usage

import { RelationshipType } from "openxmlsdkts";

// Get a part by relationship type
const stylePart = await mainPart.getPartByRelationshipType(RelationshipType.styles);

// Get all image relationships
const imageRels = await mainPart.getRelationshipsByRelationshipType(RelationshipType.image);

// Add a relationship
await mainPart.addRelationship("rId20", RelationshipType.image, "media/image1.png");
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All RelationshipType Properties

The following 80 properties are available on the RelationshipType object:

Property	Property	Property
alternativeFormatImport	calculationChain	cellMetadata
chart	chartColorStyle	chartDrawing
chartsheet	chartStyle	commentAuthors
connections	coreFileProperties	customFileProperties
customization	customProperty	customXml
customXmlMappings	customXmlProperties	diagramColors
diagramData	diagramLayoutDefinition	diagramPersistLayout
diagramStyle	dialogsheet	digitalSignatureOrigin
documentSettings	drawings	endnotes
excelAttachedToolbars	extendedFileProperties	externalWorkbook
font	fontTable	footer
footnotes	glossaryDocument	handoutMaster
header	image	mainDocument
notesMaster	notesSlide	numberingDefinitions
pivotTable	pivotTableCacheDefinition	pivotTableCacheRecords
presentation	presentationProperties	queryTable
ribbonAndBackstageCustomizations	sharedStringTable	singleCellTable
slide	slideComments	slideLayout
slideMaster	slideSyncData	styles
tableDefinition	tableStyles	timeLine
theme	themeOverride	thumbnail
userDefinedTags	viewProperties	vmlDrawing
volatileDependencies	webSettings	wordAttachedToolbars
wordprocessingComments	workbook	workbookRevisionHeader
workbookRevisionLog	workbookStyles	workbookUserData
worksheet	worksheetComments	worksheetSortMap
xmlSignature

Querying with Types

Both objects are commonly used with the generic navigation methods on packages and parts:

import { ContentType, RelationshipType } from "openxmlsdkts";

// Find all worksheet parts by content type
const worksheets = await workbookPart.getPartsByContentType(ContentType.worksheet);

// Find all image parts by relationship type
const images = await mainPart.getPartsByRelationshipType(RelationshipType.image);

// Get the single styles part by relationship type
const stylesPart = await mainPart.getPartByRelationshipType(RelationshipType.styles);
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