# CoffeeScript > CoffeeScript file localization URL: https://store.crowdin.com/coffee Category: File Formats Type: System Author: Crowdin CoffeeScript 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 | .coffee | | [API Type](https://developer.crowdin.com/api/v2/#operation/api.projects.files.post) | coffee | | 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, In-Context | | Custom attributes | No | | Existing translations import possibility | Key-value mapping | ## Sample File ```coffeescript window.one.i18n["en"] = cart: showMoreItems: "Show more items" seller: brand: "Brand" gift: "gift wrap" toBeCalculated: "to be calculated" unavailableForDelivery: "This product cannot be delivered for this address." unavailableForOtherReason: "This product is not currently available." resetShipping: "Choose other postal code" message: "Message" writeMessage: "Write a message" cloneItem: "Clone this item" sku: withoutVariation: "This product has no variation" variationDisabled: "Disabled variations are not available for replacement" window.one.i18n["en-US"] = window.one.i18n["en"] ```