# Attributes

## Document types

Use these types to support multiple extensions and content types

<table><thead><tr><th width="135">Type</th><th>Extension</th><th width="434">Content type</th></tr></thead><tbody><tr><td>excel</td><td>xls, xlsx, csv</td><td>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, text/csv</td></tr><tr><td>html</td><td>html</td><td>text/html</td></tr><tr><td>pdf</td><td>pdf</td><td>application/pdf</td></tr><tr><td>powerPoint</td><td>ppt, pptx</td><td>application/vnd.openxmlformats-officedocument.presentationml.presentation, application/vnd.ms-powerpoint</td></tr><tr><td>richText</td><td>rtf</td><td>text/richtext, text/rtf</td></tr><tr><td>text</td><td>md, txt</td><td>text/markdown, text/plain</td></tr><tr><td>word</td><td>doc, docx</td><td>application/vnd.openxmlformats-officedocument.wordprocessingml.document,  application/msword</td></tr></tbody></table>