**Summary:** Contains [FileFormat](/psd/python-net/aspose.psd/fileformat/) extension methods.

**Module:** [aspose.psd.extensions](/psd/python-net/aspose.psd.extensions/)

**Full Name:** aspose.psd.extensions.FileFormatExtensions

**Aspose.PSD Version:** 24.12.0

## **Methods**
| **Name** | **Description** |
| :- | :- |
| [is_single_format_defined(file_format)](#is_single_format_defined_file_format_1) | Determines whether single file format is defined. |


### Method: is_single_format_defined(file_format)  [static] {#is_single_format_defined_file_format_1}


```
 is_single_format_defined(file_format) 
```

Determines whether single file format is defined.

**Parameters:**

| Parameter | Type | Description |
| :- | :- | :- |
| file_format | [FileFormat](/psd/python-net/aspose.psd/fileformat) | The file format to check. |

**Returns**

| Type | Description |
| :- | :- |
| bool | <c>True</c> if single file format is defined; otherwise, <c>false</c>. |