> For the complete documentation index, see [llms.txt](https://docs.amitysolutions.com/amity-solutions/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.amitysolutions.com/amity-solutions/amity-bots-gen-ai-platform/knowledge-base/documents-and-files.md). # Documents and Files

For **Documents and Files** in the Knowledge Management (KM) system, users can upload files with the following extensions: * **.pdf** (Portable Document Format) * **.docx** (Microsoft Word Document) * **.html** (Web Page Format) * **.csv**✨ (Comma-Separated Value) #### Note: * **Multiple Uploads**: Users can upload **more than one file** for each KM entry, allowing for comprehensive data management. * **Maximum Chunk Size**: Users can set the **maximum number of tokens per chunk** at the time of creation. This setting cannot be edited later, ensuring consistent chunking during processing.

For **.pdf, .docx, and .html,** Users can select the **'Chunk Resolution'** which breaking content into manageable sections: * **Main Topics:** Broad headings representing primary content divisions. * **Subtopics:** Specific headings under main topics, detailing particular aspects. * **Secondary Topics:** More detailed sections under subtopics, offering deeper insights. * **Detailed Subtopics:** The most specific points under secondary topics, focusing on particular details or examples.

### New **upgraded version of Documents and Files type** For **.pdf,** Users can click the **'Visual Extraction'** to picture content: * Chunk: 1 page/chunk