# Excel XLSX > Excel XLSX file localization URL: https://store.crowdin.com/xlsx-excel Category: File Formats Type: System Author: Crowdin Excel XLSX 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 | .xlsx, .xltx, .xls | | [API Type](https://developer.crowdin.com/api/v2/#operation/api.projects.files.post) | xlsx | | Source can be edited in Crowdin | Yes | | 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 | Yes | | Existing translations import possibility | Key-value mapping | ## Sample File
String ID Source text Translation Context Max.length Labels
1 String for translation 1 Chaîne pour la traduction 1 Context for string 1 40 mobile_app
2 String for translation 2 Chaîne pour la traduction 2 Context for string 2 40 website
3 String for translation 3 Chaîne pour la traduction 3 Context for string 3 40 emails
**XLSX Multilingual**
String ID Source text French German Italian Context Max.length Labels
1 String for translation 1 Chaîne pour la traduction 1 Zeichenfolge für die übersetzung 1 Stringa per la traduzione 1 Context for string 1 40 mobile_app
2 String for translation 2 Chaîne pour la traduction 2 Zeichenfolge für die übersetzung 2 Stringa per la traduzione 2 Context for string 2 40 website
3 String for translation 3 Chaîne pour la traduction 3 Zeichenfolge für die übersetzung 3 Stringa per la traduzione 3 Context for string 3 40 emails
## Translating Excel XLSX **Custom Attributes** Max. Length for the translated string could be set as a number in a dedicated column (e.g., "Max.length"). Labels for the string could be added in a dedicated column (e.g., "Labels") **Comments** Comments for the string could be added in a dedicated column (e.g., "Context").