**Inheritance:**
java.lang.Object

**All Implemented Interfaces:**
java.lang.Cloneable
```
public class CustomXmlPart implements Cloneable
```

Represents a Custom XML Data Storage Part (custom XML data within a package).

To learn more, visit the [ Structured Document Tags or Content Control ][Structured Document Tags or Content Control] documentation article.

 **Remarks:** 

A DOCX or DOC document can contain one or more Custom XML Data Storage parts. Aspose.Words preserves and allows to create and extract Custom XML Data via the [Document.getCustomXmlParts()](../../com.aspose.words/document/\#getCustomXmlParts) / [Document.setCustomXmlParts(com.aspose.words.CustomXmlPartCollection)](../../com.aspose.words/document/\#setCustomXmlParts-com.aspose.words.CustomXmlPartCollection) collection.

 **Examples:** 

Shows how to create a structured document tag with custom XML data.

```

 Document doc = new Document();

 // Construct an XML part that contains data and add it to the document's collection.
 // If we enable the "Developer" tab in Microsoft Word,
 // we can find elements from this collection in the "XML Mapping Pane", along with a few default elements.
 String xmlPartId = UUID.randomUUID().toString();
 String xmlPartContent = "Hello, World!";
 CustomXmlPart xmlPart = doc.getCustomXmlParts().add(xmlPartId, xmlPartContent);

 Assert.assertEquals(xmlPart.getData(), xmlPartContent.getBytes());
 Assert.assertEquals(xmlPart.getId(), xmlPartId);

 // Below are two ways to refer to XML parts.
 // 1 -  By an index in the custom XML part collection:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().get(0));

 // 2 -  By GUID:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().getById(xmlPartId));

 // Add an XML schema association.
 xmlPart.getSchemas().add("http://www.w3.org/2001/XMLSchema");

 // Clone a part, and then insert it into the collection.
 CustomXmlPart xmlPartClone = xmlPart.deepClone();
 xmlPartClone.setId(UUID.randomUUID().toString());
 doc.getCustomXmlParts().add(xmlPartClone);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 2);

 // Iterate through the collection and print the contents of each part.
 Iterator enumerator = doc.getCustomXmlParts().iterator();
 int index = 0;
 while (enumerator.hasNext()) {
     CustomXmlPart customXmlPart = enumerator.next();
     System.out.println(MessageFormat.format("XML part index {0}, ID: {1}", index, customXmlPart.getId()));
     System.out.println(MessageFormat.format("\tContent: {0}", customXmlPart.getData()));
     index++;
 }

 // Use the "RemoveAt" method to remove the cloned part by index.
 doc.getCustomXmlParts().removeAt(1);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 1);

 // Clone the XML parts collection, and then use the "Clear" method to remove all its elements at once.
 CustomXmlPartCollection customXmlParts = doc.getCustomXmlParts().deepClone();
 customXmlParts.clear();

 // Create a structured document tag that will display our part's contents and insert it into the document body.
 StructuredDocumentTag tag = new StructuredDocumentTag(doc, SdtType.PLAIN_TEXT, MarkupLevel.BLOCK);
 tag.getXmlMapping().setMapping(xmlPart, "/root[1]/text[1]", "");

 doc.getFirstSection().getBody().appendChild(tag);

 doc.save(getArtifactsDir() + "StructuredDocumentTag.CustomXml.docx");
 
```


[Structured Document Tags or Content Control]: https://docs.aspose.com/words/java/working-with-content-control-sdt/
## Methods

| Method | Description |
| --- | --- |
| [deepClone()](#deepClone) | Makes a "deep enough" copy of the object. |
| [getData()](#getData) | Gets the XML content of this Custom XML Data Storage Part. |
| [getDataChecksum()](#getDataChecksum) | Specifies a cyclic redundancy check (CRC) checksum of the [getData()](../../com.aspose.words/customxmlpart/\#getData) / [setData(byte[])](../../com.aspose.words/customxmlpart/\#setData-byte) content. |
| [getId()](#getId) | Gets the string that identifies this custom XML part within an OOXML document. |
| [getSchemas()](#getSchemas) | Specifies the set of XML schemas that are associated with this custom XML part. |
| [setData(byte[] value)](#setData-byte) | Sets the XML content of this Custom XML Data Storage Part. |
| [setId(String value)](#setId-java.lang.String) | Sets the string that identifies this custom XML part within an OOXML document. |
### deepClone() {#deepClone}
```
public CustomXmlPart deepClone()
```


Makes a "deep enough" copy of the object. Does not duplicate the bytes of the [getData()](../../com.aspose.words/customxmlpart/\#getData) / [setData(byte[])](../../com.aspose.words/customxmlpart/\#setData-byte) value.

 **Examples:** 

Shows how to create a structured document tag with custom XML data.

```

 Document doc = new Document();

 // Construct an XML part that contains data and add it to the document's collection.
 // If we enable the "Developer" tab in Microsoft Word,
 // we can find elements from this collection in the "XML Mapping Pane", along with a few default elements.
 String xmlPartId = UUID.randomUUID().toString();
 String xmlPartContent = "Hello, World!";
 CustomXmlPart xmlPart = doc.getCustomXmlParts().add(xmlPartId, xmlPartContent);

 Assert.assertEquals(xmlPart.getData(), xmlPartContent.getBytes());
 Assert.assertEquals(xmlPart.getId(), xmlPartId);

 // Below are two ways to refer to XML parts.
 // 1 -  By an index in the custom XML part collection:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().get(0));

 // 2 -  By GUID:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().getById(xmlPartId));

 // Add an XML schema association.
 xmlPart.getSchemas().add("http://www.w3.org/2001/XMLSchema");

 // Clone a part, and then insert it into the collection.
 CustomXmlPart xmlPartClone = xmlPart.deepClone();
 xmlPartClone.setId(UUID.randomUUID().toString());
 doc.getCustomXmlParts().add(xmlPartClone);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 2);

 // Iterate through the collection and print the contents of each part.
 Iterator enumerator = doc.getCustomXmlParts().iterator();
 int index = 0;
 while (enumerator.hasNext()) {
     CustomXmlPart customXmlPart = enumerator.next();
     System.out.println(MessageFormat.format("XML part index {0}, ID: {1}", index, customXmlPart.getId()));
     System.out.println(MessageFormat.format("\tContent: {0}", customXmlPart.getData()));
     index++;
 }

 // Use the "RemoveAt" method to remove the cloned part by index.
 doc.getCustomXmlParts().removeAt(1);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 1);

 // Clone the XML parts collection, and then use the "Clear" method to remove all its elements at once.
 CustomXmlPartCollection customXmlParts = doc.getCustomXmlParts().deepClone();
 customXmlParts.clear();

 // Create a structured document tag that will display our part's contents and insert it into the document body.
 StructuredDocumentTag tag = new StructuredDocumentTag(doc, SdtType.PLAIN_TEXT, MarkupLevel.BLOCK);
 tag.getXmlMapping().setMapping(xmlPart, "/root[1]/text[1]", "");

 doc.getFirstSection().getBody().appendChild(tag);

 doc.save(getArtifactsDir() + "StructuredDocumentTag.CustomXml.docx");
 
```

**Returns:**
[CustomXmlPart](../../com.aspose.words/customxmlpart/)
### getData() {#getData}
```
public byte[] getData()
```


Gets the XML content of this Custom XML Data Storage Part.

 **Remarks:** 

The default value is an empty byte array. The value cannot be  null .

 **Examples:** 

Shows how to create a structured document tag with custom XML data.

```

 Document doc = new Document();

 // Construct an XML part that contains data and add it to the document's collection.
 // If we enable the "Developer" tab in Microsoft Word,
 // we can find elements from this collection in the "XML Mapping Pane", along with a few default elements.
 String xmlPartId = UUID.randomUUID().toString();
 String xmlPartContent = "Hello, World!";
 CustomXmlPart xmlPart = doc.getCustomXmlParts().add(xmlPartId, xmlPartContent);

 Assert.assertEquals(xmlPart.getData(), xmlPartContent.getBytes());
 Assert.assertEquals(xmlPart.getId(), xmlPartId);

 // Below are two ways to refer to XML parts.
 // 1 -  By an index in the custom XML part collection:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().get(0));

 // 2 -  By GUID:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().getById(xmlPartId));

 // Add an XML schema association.
 xmlPart.getSchemas().add("http://www.w3.org/2001/XMLSchema");

 // Clone a part, and then insert it into the collection.
 CustomXmlPart xmlPartClone = xmlPart.deepClone();
 xmlPartClone.setId(UUID.randomUUID().toString());
 doc.getCustomXmlParts().add(xmlPartClone);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 2);

 // Iterate through the collection and print the contents of each part.
 Iterator enumerator = doc.getCustomXmlParts().iterator();
 int index = 0;
 while (enumerator.hasNext()) {
     CustomXmlPart customXmlPart = enumerator.next();
     System.out.println(MessageFormat.format("XML part index {0}, ID: {1}", index, customXmlPart.getId()));
     System.out.println(MessageFormat.format("\tContent: {0}", customXmlPart.getData()));
     index++;
 }

 // Use the "RemoveAt" method to remove the cloned part by index.
 doc.getCustomXmlParts().removeAt(1);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 1);

 // Clone the XML parts collection, and then use the "Clear" method to remove all its elements at once.
 CustomXmlPartCollection customXmlParts = doc.getCustomXmlParts().deepClone();
 customXmlParts.clear();

 // Create a structured document tag that will display our part's contents and insert it into the document body.
 StructuredDocumentTag tag = new StructuredDocumentTag(doc, SdtType.PLAIN_TEXT, MarkupLevel.BLOCK);
 tag.getXmlMapping().setMapping(xmlPart, "/root[1]/text[1]", "");

 doc.getFirstSection().getBody().appendChild(tag);

 doc.save(getArtifactsDir() + "StructuredDocumentTag.CustomXml.docx");
 
```

**Returns:**
byte[] - The XML content of this Custom XML Data Storage Part.
### getDataChecksum() {#getDataChecksum}
```
public long getDataChecksum()
```


Specifies a cyclic redundancy check (CRC) checksum of the [getData()](../../com.aspose.words/customxmlpart/\#getData) / [setData(byte[])](../../com.aspose.words/customxmlpart/\#setData-byte) content.

 **Examples:** 

Shows how the checksum is calculated in a runtime.

```

 Document doc = new Document();

 StructuredDocumentTag richText = new StructuredDocumentTag(doc, SdtType.RICH_TEXT, MarkupLevel.BLOCK);
 doc.getFirstSection().getBody().appendChild(richText);

 // The checksum is read-only and computed using the data of the corresponding custom XML data part.
 richText.getXmlMapping().setMapping(doc.getCustomXmlParts().add(UUID.randomUUID().toString(),
         "ContentControl"), "/root/text", "");

 long checksum = richText.getXmlMapping().getCustomXmlPart().getDataChecksum();
 System.out.println(checksum);

 richText.getXmlMapping().setMapping(doc.getCustomXmlParts().add(UUID.randomUUID().toString(),
         "Updated ContentControl"), "/root/text", "");

 long updatedChecksum = richText.getXmlMapping().getCustomXmlPart().getDataChecksum();
 System.out.println(updatedChecksum);

 // We changed the XmlPart of the tag, and the checksum was updated at runtime.
 Assert.assertNotEquals(checksum, updatedChecksum);
 
```

**Returns:**
long - The corresponding  long  value.
### getId() {#getId}
```
public String getId()
```


Gets the string that identifies this custom XML part within an OOXML document.

 **Remarks:** 

ISO/IEC 29500 specifies that this value is a GUID, but old versions of Microsoft Word allowed any string here. Aspose.Words does the same for ECMA-376 format. But note, that Microsoft Word Online fails to open a document created with a non-GUID value. So, a GUID is preferred value for this property.

A valid value must be an identifier that is unique among all custom XML data parts in this document.

The default value is an empty string. The value cannot be  null .

 **Examples:** 

Shows how to create a structured document tag with custom XML data.

```

 Document doc = new Document();

 // Construct an XML part that contains data and add it to the document's collection.
 // If we enable the "Developer" tab in Microsoft Word,
 // we can find elements from this collection in the "XML Mapping Pane", along with a few default elements.
 String xmlPartId = UUID.randomUUID().toString();
 String xmlPartContent = "Hello, World!";
 CustomXmlPart xmlPart = doc.getCustomXmlParts().add(xmlPartId, xmlPartContent);

 Assert.assertEquals(xmlPart.getData(), xmlPartContent.getBytes());
 Assert.assertEquals(xmlPart.getId(), xmlPartId);

 // Below are two ways to refer to XML parts.
 // 1 -  By an index in the custom XML part collection:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().get(0));

 // 2 -  By GUID:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().getById(xmlPartId));

 // Add an XML schema association.
 xmlPart.getSchemas().add("http://www.w3.org/2001/XMLSchema");

 // Clone a part, and then insert it into the collection.
 CustomXmlPart xmlPartClone = xmlPart.deepClone();
 xmlPartClone.setId(UUID.randomUUID().toString());
 doc.getCustomXmlParts().add(xmlPartClone);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 2);

 // Iterate through the collection and print the contents of each part.
 Iterator enumerator = doc.getCustomXmlParts().iterator();
 int index = 0;
 while (enumerator.hasNext()) {
     CustomXmlPart customXmlPart = enumerator.next();
     System.out.println(MessageFormat.format("XML part index {0}, ID: {1}", index, customXmlPart.getId()));
     System.out.println(MessageFormat.format("\tContent: {0}", customXmlPart.getData()));
     index++;
 }

 // Use the "RemoveAt" method to remove the cloned part by index.
 doc.getCustomXmlParts().removeAt(1);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 1);

 // Clone the XML parts collection, and then use the "Clear" method to remove all its elements at once.
 CustomXmlPartCollection customXmlParts = doc.getCustomXmlParts().deepClone();
 customXmlParts.clear();

 // Create a structured document tag that will display our part's contents and insert it into the document body.
 StructuredDocumentTag tag = new StructuredDocumentTag(doc, SdtType.PLAIN_TEXT, MarkupLevel.BLOCK);
 tag.getXmlMapping().setMapping(xmlPart, "/root[1]/text[1]", "");

 doc.getFirstSection().getBody().appendChild(tag);

 doc.save(getArtifactsDir() + "StructuredDocumentTag.CustomXml.docx");
 
```

**Returns:**
java.lang.String - The string that identifies this custom XML part within an OOXML document.
### getSchemas() {#getSchemas}
```
public CustomXmlSchemaCollection getSchemas()
```


Specifies the set of XML schemas that are associated with this custom XML part.

 **Examples:** 

Shows how to create a structured document tag with custom XML data.

```

 Document doc = new Document();

 // Construct an XML part that contains data and add it to the document's collection.
 // If we enable the "Developer" tab in Microsoft Word,
 // we can find elements from this collection in the "XML Mapping Pane", along with a few default elements.
 String xmlPartId = UUID.randomUUID().toString();
 String xmlPartContent = "Hello, World!";
 CustomXmlPart xmlPart = doc.getCustomXmlParts().add(xmlPartId, xmlPartContent);

 Assert.assertEquals(xmlPart.getData(), xmlPartContent.getBytes());
 Assert.assertEquals(xmlPart.getId(), xmlPartId);

 // Below are two ways to refer to XML parts.
 // 1 -  By an index in the custom XML part collection:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().get(0));

 // 2 -  By GUID:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().getById(xmlPartId));

 // Add an XML schema association.
 xmlPart.getSchemas().add("http://www.w3.org/2001/XMLSchema");

 // Clone a part, and then insert it into the collection.
 CustomXmlPart xmlPartClone = xmlPart.deepClone();
 xmlPartClone.setId(UUID.randomUUID().toString());
 doc.getCustomXmlParts().add(xmlPartClone);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 2);

 // Iterate through the collection and print the contents of each part.
 Iterator enumerator = doc.getCustomXmlParts().iterator();
 int index = 0;
 while (enumerator.hasNext()) {
     CustomXmlPart customXmlPart = enumerator.next();
     System.out.println(MessageFormat.format("XML part index {0}, ID: {1}", index, customXmlPart.getId()));
     System.out.println(MessageFormat.format("\tContent: {0}", customXmlPart.getData()));
     index++;
 }

 // Use the "RemoveAt" method to remove the cloned part by index.
 doc.getCustomXmlParts().removeAt(1);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 1);

 // Clone the XML parts collection, and then use the "Clear" method to remove all its elements at once.
 CustomXmlPartCollection customXmlParts = doc.getCustomXmlParts().deepClone();
 customXmlParts.clear();

 // Create a structured document tag that will display our part's contents and insert it into the document body.
 StructuredDocumentTag tag = new StructuredDocumentTag(doc, SdtType.PLAIN_TEXT, MarkupLevel.BLOCK);
 tag.getXmlMapping().setMapping(xmlPart, "/root[1]/text[1]", "");

 doc.getFirstSection().getBody().appendChild(tag);

 doc.save(getArtifactsDir() + "StructuredDocumentTag.CustomXml.docx");
 
```

**Returns:**
[CustomXmlSchemaCollection](../../com.aspose.words/customxmlschemacollection/) - The corresponding [CustomXmlSchemaCollection](../../com.aspose.words/customxmlschemacollection/) value.
### setData(byte[] value) {#setData-byte}
```
public void setData(byte[] value)
```


Sets the XML content of this Custom XML Data Storage Part.

 **Remarks:** 

The default value is an empty byte array. The value cannot be  null .

 **Examples:** 

Shows how to create a structured document tag with custom XML data.

```

 Document doc = new Document();

 // Construct an XML part that contains data and add it to the document's collection.
 // If we enable the "Developer" tab in Microsoft Word,
 // we can find elements from this collection in the "XML Mapping Pane", along with a few default elements.
 String xmlPartId = UUID.randomUUID().toString();
 String xmlPartContent = "Hello, World!";
 CustomXmlPart xmlPart = doc.getCustomXmlParts().add(xmlPartId, xmlPartContent);

 Assert.assertEquals(xmlPart.getData(), xmlPartContent.getBytes());
 Assert.assertEquals(xmlPart.getId(), xmlPartId);

 // Below are two ways to refer to XML parts.
 // 1 -  By an index in the custom XML part collection:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().get(0));

 // 2 -  By GUID:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().getById(xmlPartId));

 // Add an XML schema association.
 xmlPart.getSchemas().add("http://www.w3.org/2001/XMLSchema");

 // Clone a part, and then insert it into the collection.
 CustomXmlPart xmlPartClone = xmlPart.deepClone();
 xmlPartClone.setId(UUID.randomUUID().toString());
 doc.getCustomXmlParts().add(xmlPartClone);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 2);

 // Iterate through the collection and print the contents of each part.
 Iterator enumerator = doc.getCustomXmlParts().iterator();
 int index = 0;
 while (enumerator.hasNext()) {
     CustomXmlPart customXmlPart = enumerator.next();
     System.out.println(MessageFormat.format("XML part index {0}, ID: {1}", index, customXmlPart.getId()));
     System.out.println(MessageFormat.format("\tContent: {0}", customXmlPart.getData()));
     index++;
 }

 // Use the "RemoveAt" method to remove the cloned part by index.
 doc.getCustomXmlParts().removeAt(1);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 1);

 // Clone the XML parts collection, and then use the "Clear" method to remove all its elements at once.
 CustomXmlPartCollection customXmlParts = doc.getCustomXmlParts().deepClone();
 customXmlParts.clear();

 // Create a structured document tag that will display our part's contents and insert it into the document body.
 StructuredDocumentTag tag = new StructuredDocumentTag(doc, SdtType.PLAIN_TEXT, MarkupLevel.BLOCK);
 tag.getXmlMapping().setMapping(xmlPart, "/root[1]/text[1]", "");

 doc.getFirstSection().getBody().appendChild(tag);

 doc.save(getArtifactsDir() + "StructuredDocumentTag.CustomXml.docx");
 
```

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| value | byte[] | The XML content of this Custom XML Data Storage Part. |

### setId(String value) {#setId-java.lang.String}
```
public void setId(String value)
```


Sets the string that identifies this custom XML part within an OOXML document.

 **Remarks:** 

ISO/IEC 29500 specifies that this value is a GUID, but old versions of Microsoft Word allowed any string here. Aspose.Words does the same for ECMA-376 format. But note, that Microsoft Word Online fails to open a document created with a non-GUID value. So, a GUID is preferred value for this property.

A valid value must be an identifier that is unique among all custom XML data parts in this document.

The default value is an empty string. The value cannot be  null .

 **Examples:** 

Shows how to create a structured document tag with custom XML data.

```

 Document doc = new Document();

 // Construct an XML part that contains data and add it to the document's collection.
 // If we enable the "Developer" tab in Microsoft Word,
 // we can find elements from this collection in the "XML Mapping Pane", along with a few default elements.
 String xmlPartId = UUID.randomUUID().toString();
 String xmlPartContent = "Hello, World!";
 CustomXmlPart xmlPart = doc.getCustomXmlParts().add(xmlPartId, xmlPartContent);

 Assert.assertEquals(xmlPart.getData(), xmlPartContent.getBytes());
 Assert.assertEquals(xmlPart.getId(), xmlPartId);

 // Below are two ways to refer to XML parts.
 // 1 -  By an index in the custom XML part collection:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().get(0));

 // 2 -  By GUID:
 Assert.assertEquals(xmlPart, doc.getCustomXmlParts().getById(xmlPartId));

 // Add an XML schema association.
 xmlPart.getSchemas().add("http://www.w3.org/2001/XMLSchema");

 // Clone a part, and then insert it into the collection.
 CustomXmlPart xmlPartClone = xmlPart.deepClone();
 xmlPartClone.setId(UUID.randomUUID().toString());
 doc.getCustomXmlParts().add(xmlPartClone);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 2);

 // Iterate through the collection and print the contents of each part.
 Iterator enumerator = doc.getCustomXmlParts().iterator();
 int index = 0;
 while (enumerator.hasNext()) {
     CustomXmlPart customXmlPart = enumerator.next();
     System.out.println(MessageFormat.format("XML part index {0}, ID: {1}", index, customXmlPart.getId()));
     System.out.println(MessageFormat.format("\tContent: {0}", customXmlPart.getData()));
     index++;
 }

 // Use the "RemoveAt" method to remove the cloned part by index.
 doc.getCustomXmlParts().removeAt(1);

 Assert.assertEquals(doc.getCustomXmlParts().getCount(), 1);

 // Clone the XML parts collection, and then use the "Clear" method to remove all its elements at once.
 CustomXmlPartCollection customXmlParts = doc.getCustomXmlParts().deepClone();
 customXmlParts.clear();

 // Create a structured document tag that will display our part's contents and insert it into the document body.
 StructuredDocumentTag tag = new StructuredDocumentTag(doc, SdtType.PLAIN_TEXT, MarkupLevel.BLOCK);
 tag.getXmlMapping().setMapping(xmlPart, "/root[1]/text[1]", "");

 doc.getFirstSection().getBody().appendChild(tag);

 doc.save(getArtifactsDir() + "StructuredDocumentTag.CustomXml.docx");
 
```

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| value | java.lang.String | The string that identifies this custom XML part within an OOXML document. |