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 # `ExternalDataFileCollection`

 Last update: 09.03.2026 

<a id="ansys.mechanical.stubs.v252.Ansys.Mechanical.ExternalData.ExternalDataFileCollection"></a>

#### *class* Ansys.Mechanical.ExternalData.ExternalDataFileCollection

Bases: [`object`](https://docs.python.org/3/library/functions.html#object)

T:Ansys.Mechanical.ExternalData.ExternalDataFileCollection is a class that provides foundational behavior for holding external data files.

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## Overview

### Methods

NameDescription[`Add`](#ExternalDataFileCollection.Add)[`Clear`](#ExternalDataFileCollection.Clear)[`Contains`](#ExternalDataFileCollection.Contains)[`CopyTo`](#ExternalDataFileCollection.CopyTo)CopyTo method.[`GetEnumerator`](#ExternalDataFileCollection.GetEnumerator)[`IndexOf`](#ExternalDataFileCollection.IndexOf)[`Insert`](#ExternalDataFileCollection.Insert)[`Remove`](#ExternalDataFileCollection.Remove)[`RemoveAt`](#ExternalDataFileCollection.RemoveAt)### Properties

NameDescription[`Count`](#ExternalDataFileCollection.Count)Gets the number of external data files.[`Item`](#ExternalDataFileCollection.Item)Item property.[`SaveFilesWithProject`](#ExternalDataFileCollection.SaveFilesWithProject)Gets or sets the flag controlling if the external data files will be copied to the project directory.<a id="property-detail"></a>

## Property detail

<a id="ExternalDataFileCollection.Count"></a>

### *property* ExternalDataFileCollection.Count *: [int](https://docs.python.org/3/library/functions.html#int) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the number of external data files.

<a id="ExternalDataFileCollection.Item"></a>

### *property* ExternalDataFileCollection.Item *: [Ansys.Mechanical.ExternalData.ExternalDataFile](ExternalDataFile.md#ansys.mechanical.stubs.v252.Ansys.Mechanical.ExternalData.ExternalDataFile) | [None](https://docs.python.org/3/library/constants.html#None)*

Item property.

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### *property* ExternalDataFileCollection.SaveFilesWithProject *: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the flag controlling if the external data files will be copied to the project directory. If this flag is set to False, the external data files will directly reference the file path. The default is False.

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## Method detail

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### ExternalDataFileCollection.Add(item: [Ansys.Mechanical.ExternalData.ExternalDataFile](ExternalDataFile.md#ansys.mechanical.stubs.v252.Ansys.Mechanical.ExternalData.ExternalDataFile)) → [None](https://docs.python.org/3/library/constants.html#None)

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### ExternalDataFileCollection.Clear() → [None](https://docs.python.org/3/library/constants.html#None)

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### ExternalDataFileCollection.Contains(item: [Ansys.Mechanical.ExternalData.ExternalDataFile](ExternalDataFile.md#ansys.mechanical.stubs.v252.Ansys.Mechanical.ExternalData.ExternalDataFile)) → [bool](https://docs.python.org/3/library/functions.html#bool)

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### ExternalDataFileCollection.CopyTo(array: [Ansys.Mechanical.ExternalData.ExternalDataFile](ExternalDataFile.md#ansys.mechanical.stubs.v252.Ansys.Mechanical.ExternalData.ExternalDataFile), arrayIndex: [int](https://docs.python.org/3/library/functions.html#int)) → [None](https://docs.python.org/3/library/constants.html#None)

CopyTo method.

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### ExternalDataFileCollection.GetEnumerator() → Iterator\[[Ansys.Mechanical.ExternalData.ExternalDataFile](ExternalDataFile.md#ansys.mechanical.stubs.v252.Ansys.Mechanical.ExternalData.ExternalDataFile)\]

<a id="ExternalDataFileCollection.IndexOf"></a>

### ExternalDataFileCollection.IndexOf(item: [Ansys.Mechanical.ExternalData.ExternalDataFile](ExternalDataFile.md#ansys.mechanical.stubs.v252.Ansys.Mechanical.ExternalData.ExternalDataFile)) → [int](https://docs.python.org/3/library/functions.html#int)

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### ExternalDataFileCollection.Insert(index: [int](https://docs.python.org/3/library/functions.html#int), item: [Ansys.Mechanical.ExternalData.ExternalDataFile](ExternalDataFile.md#ansys.mechanical.stubs.v252.Ansys.Mechanical.ExternalData.ExternalDataFile)) → [None](https://docs.python.org/3/library/constants.html#None)

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### ExternalDataFileCollection.Remove(item: [Ansys.Mechanical.ExternalData.ExternalDataFile](ExternalDataFile.md#ansys.mechanical.stubs.v252.Ansys.Mechanical.ExternalData.ExternalDataFile)) → [bool](https://docs.python.org/3/library/functions.html#bool)

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### ExternalDataFileCollection.RemoveAt(index: [int](https://docs.python.org/3/library/functions.html#int)) → [None](https://docs.python.org/3/library/constants.html#None)