> ## 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.

# Insert attachments

> DingTalk Sheets attachments: upload local files, images, audio, and video (up to 251 MB on Standard, 1 GB on Professional) with online preview for documents and media — making it easy to build a shared team resource library.

Spreadsheet supports inserting attachments such as local files, images, audio, and video. Build your team's online resource library with ease.

## Instructions

1. Entry point: Insert > Attachment.

2. The attachment size limit is 251 MB for DingTalk Standard and 1 GB for DingTalk Professional.

3. Attachment formats that support online preview: documents, spreadsheets, presentations, images, video, and audio. Other formats must be downloaded and cannot be previewed.

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