Expand files

Category: Function

Version: 1.0

Last updated: Januari 9, 2026

Author: Any2Info

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Description

The Expand Files node is used to process and transform columns that contain file data within a dataflow.

The Data hub provides two special data types for handling files:

• File – Represents a single file, containing both the content (Base64-encoded) and the filename.

• MultipleFiles – Similar to File, but contains multiple files within a single record.

The Expand Files node can perform two main operations:

1. Expand MultipleFiles to individual File rows

When a column contains multiple files (type MultipleFiles), this node can “expand” those files into separate rows.

Each resulting row will contain a single file.

For example, if one record contains three files, the result will be three records — each containing one file.

1. Split File into content and filename columns

The node can further decompose file data into two separate columns:

FileContent – The Base64-encoded file content.

FileName – The file name as a text value.

This can be done for both File and MultipleFiles inputs.

The node also exposes a Files connector, which can be used by subsequent nodes to process only the rows that contain file data.

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Property Options

Setting	Type	Required	Description
Source column	Select	Yes	Select the source column from the input that contains file data. This column must be of type File or MultipleFiles.
Output type	Select	Yes	Defines how the data should be expanded: • File – Expands a MultipleFiles column into multiple rows, each containing one File. • Base64 + Filename – Splits each file into two separate columns: FileContent (base64) and FileName (string).

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Tips & best practices

• Use the Files connector when a following node expects file input. Some nodes — such as Export to OneDrive, or other file output nodes — only process rows that contain actual files. By connecting those nodes to the Files connector of the Expand Files node, you automatically pass only the rows that include files.

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Changelog

Version	Date	Change
1.0	Januari 9, 2026	Initial documentation version added.