Gets the raw data of the file slice.

Hosts: PowerPoint, Word
Available in Requirement set File
Last changed in 1.1
var sliceData =;

Return value

The raw data of the file slice in Office.FileType.Text ("text") or Office.FileType.Compressed ("compressed") format as specified by the fileType parameter of the call to the Document.getFileAsync method.


Files in the "compressed" format will return a byte array that can be transformed to a base64-encoded string if required.

Support details

A capital Y in the following matrix indicates that this property is supported in the corresponding Office host application. An empty cell indicates that the Office host application doesn't support this property.

For more information about Office host application and server requirements, see Requirements for running Office Add-ins.

Office for Windows desktop Office Online (in browser) Office for iPad
PowerPoint Y Y Y
Word Y Y Y
Available in requirement sets File
Minimum permission level ReadDocument
Add-in types Content, task pane
Library Office.js
Namespace Office

Support history

Version Changes
1.1 Added support for PowerPoint and Word in Office for iPad.
1.0 Introduced