> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wissly.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Folder Connection Overview

> Understand folder connections and what they support

Before Wissly can answer questions about your documents, it first needs to read them and organize them into a searchable form. Connecting a folder tells Wissly "you can read the documents in this folder."

## What is Folder Connection?

Folder connection links a specific folder on your computer to Wissly. Documents in connected folders are automatically indexed and used to answer your questions.

<Info>
  **Indexing** is the process where Wissly reads document contents and organizes them into a searchable format. Once indexed, documents can be searched quickly.
</Info>

## Supported Connection Types

| Connection Type | Description                                               |
| --------------- | --------------------------------------------------------- |
| Local Folder    | Folders on your computer (desktop, laptop)                |
| NAS             | Folders on Network Attached Storage                       |
| Cloud Drive     | Synced folders from OneDrive, Google Drive, Dropbox, etc. |

## Supported File Formats

<CardGroup cols={3}>
  <Card title="PDF" icon="file-pdf">
    Regular PDFs and scanned documents
  </Card>

  <Card title="Microsoft Word" icon="file-word">
    .doc, .docx
  </Card>

  <Card title="Microsoft Excel" icon="file-excel">
    .xls, .xlsx
  </Card>

  <Card title="Microsoft PowerPoint" icon="file-powerpoint">
    .ppt, .pptx
  </Card>

  <Card title="Text Files" icon="file-lines">
    .txt
  </Card>

  <Card title="Scanned Documents" icon="scanner">
    Text recognition via OCR
  </Card>
</CardGroup>

<Tip>
  Scanned contracts and receipts are recognized through OCR. However, better scan quality means better recognition accuracy.
</Tip>

## Things to Know About Connections

* Connecting a parent folder includes all documents in subfolders.
* When documents are added, modified, or deleted in connected folders, Wissly automatically detects and syncs changes.
* You can connect multiple folders simultaneously.
* Documents are encrypted and securely processed, and are never used to train AI models.

<CardGroup cols={2}>
  <Card title="Connect Local Folders" icon="folder" href="/en/connect/local-folder">
    How to connect folders on your computer
  </Card>

  <Card title="Connect Cloud Drives" icon="cloud" href="/en/connect/cloud-drive">
    How to connect OneDrive, Google Drive, etc.
  </Card>
</CardGroup>