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

# Image and attachment

> Use the Image and attachment field to store files — site photos, design drawings, PDF contracts, Excel reports — directly in a cell.

## Image and attachment

The **Image and attachment** field stores files directly in cells — site photos, design drawings, PDF contracts, Excel reports.

It's used for asset management (equipment photos), contract archiving (scanned documents), expense approval (invoice uploads), etc. — with online preview and batch management.

### Add a field

In a grid view, quickly create a column for files:

1. Click + on the right of the header.
2. Under **Standard fields** in the dropdown, pick **Image and attachment**.
3. Enter a field name (e.g. "Asset photo" or "Related files") and save.

### Upload and manage files

After creating the field, upload files in multiple ways:

#### 1. Upload

Click the empty area in a cell to open the upload panel.

* **Local upload**: pick files from your computer or mobile gallery.
* **Drag and drop**: drag files from your desktop straight into the cell (multiple files supported).

#### 2. Preview and download

* **Online preview**: click a file name or thumbnail in the cell to preview images, play videos, or view documents in a large window — no download needed.
* **Standalone preview**: click **Preview** on the right of the cell to open in a separate plugin.

### Download attachments

Open the menu in the upper-right — **Export as** → **Export as Excel** — pick an attachment export option in the dialog.

### Advanced — use as view cover

In **kanban** or **gallery** views, images in attachment fields can be set as the card cover for visual impact.

1. Switch to **kanban** or **gallery** view.
2. Click **Settings** in the upper-right.
3. Under **Cover**, pick the corresponding Image and attachment field.
4. Once set, the card uses the field's first image as the cover.

# FAQ

* **Q: How many attachments can a table hold?**
  * Unlimited.
* **Q: How many attachments per cell?**
  * Up to 100.
* **Q: What file types are supported?**
  * No restriction.
* **Q: What's the size limit per file?**
  * 3 GB.
* **Q: Why does uploading sometimes fail?**
  * Attachments use the org's storage. Possible reasons:
  * The org of the table's owner is out of storage — uploads to that owner's tables will fail.
  * Network issues during upload.