# Data formats

## File formats

| Format         | Description and access                                                                                                                                                      |
| -------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| XLSX           | Public release files. See [release information](/en/resources/file-definitions#release) for the purpose, contents and public scope of the three file types.                               |
| ILCD 1.1 (ZIP) | LCI result datasets and related flows, flow properties, unit groups and references. An export implementation is documented; downloads require the applicable authorization. |

## Attachment fields

[File definitions](/en/resources/file-definitions) contain the complete XLSX worksheets, column order, field meanings and
missing-value rules.

## File catalog

Open version-specific files through [databases and versions](/en/releases).