---
slug: file-size-limits
title: File size limits
category: definition
status: published
tags: [file, size, limit, upload, attachment, 文件, 大小, 上传, 限制]
aliases: []
lastEditAt: 2026-04-26
---
**What are the file size limits?**  
Documents (PDF, Word, text, markdown) — up to ~50 MB. Images (PNG, JPG, WebP) — up to ~25 MB. Spreadsheets (CSV, Excel) — up to ~50 MB. Audio — up to ~100 MB. Video — up to ~500 MB.

**Can I upload multiple files?**  
Yes. A task can attach multiple files at once. The upload UI shows the running total and warns before the limit.

**What about very large files?**  
Larger files generally don't fail but can slow down the task. If you regularly work with files beyond these ranges (massive datasets, long-form video), reach out via support — there are options for larger workflows.

**What's checked at upload?**  
File size, basic file type validation, and malware scanning on common formats. Uploaded files become workspace assets and follow the same retention rules as other content.