# Flex

> Flex file localization

URL: https://store.crowdin.com/flex
Identifier: flex
Category: File Formats
Type: System
Author: Crowdin

Flex is a natively supported file format, you can use it without an additional installation. Just upload it to your projects and start the localization.

## File Format Details

| Attribute | Value |
| --------- | ----- |
| File Extension | .properties |
| [API Type](https://developer.crowdin.com/api/v2/#operation/api.projects.files.post) | flex |
| Source can be edited in Crowdin | No |
| Generating translated files via [Bundles](https://support.crowdin.com/bundles/) | [Search Crowdin Store](https://store.crowdin.com/tags/string-exporter) |
| Supports pluralization | No |
| WYSIWYG Preview in the editor | No |
| Supported types of contextual information | Text comments, Screenshots |
| Custom attributes | No |
| Existing translations import possibility | Key-value mapping |

## Sample File

```ini
# locale/en_US/RegistrationForm.properties
welcome_message=Welcome!
save_as_button=Save as...
view=View
about=About...
about_me=About Me
current_password=Current Password
```

## Translating Flex


**Note**: To upload Flex, use API or CLI specifying the localization type: “flex”