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

# Uploads and files

> Fixes for uploads, file size and format limits, storage, and downloading files in Review.

<Info>This area is for **dfine.io - Review**.</Info>

## Uploading

<AccordionGroup>
  <Accordion title="My upload is stuck or failed" icon="upload">
    Most often the connection dropped. Open the **Upload Manager** and retry the file, and check your internet connection. Large files are uploaded in parts, so a brief drop only affects the part in flight. If you see **"Upload session not found"**, start the upload again from the beginning.
  </Accordion>

  <Accordion title="'File size exceeds 50GB limit'" icon="file-x">
    The limit is 50 GB per file. Compress the file or split it into smaller parts under 50 GB, then upload again.
  </Accordion>

  <Accordion title="'File extension not allowed'" icon="file-question-mark">
    That format is not on the allowlist. Use a supported video, image or audio format, or write to support if you need one added. See [Compatibility](/en/compatibility) for the full list.
  </Accordion>

  <Accordion title="I am out of storage" icon="hard-drive">
    When you reach your plan limit you see **"Storage quota exceeded. Upgrade your plan or delete files to free up space."** or **"File limit exceeded."** Delete files you no longer need, or upgrade. If you are not the owner, you see **"Plan limit reached. Please contact the project owner."**
  </Accordion>

  <Accordion title="Too many files at once" icon="files">
    You can upload up to 250 files in one go. For bigger sets, upload in smaller batches. If you upload very quickly you may briefly see a rate limit, just wait a moment and continue.
  </Accordion>

  <Accordion title="Unable to verify upload limits. Please try again." icon="refresh-cw">
    A short network or server hiccup interrupted the limit check. Wait a moment and start the upload again.
  </Accordion>
</AccordionGroup>

## Downloading and managing files

<AccordionGroup>
  <Accordion title="Nothing happens when I download" icon="download">
    If you see **"No items selected for download"** or **"No downloadable items selected"**, pick at least one file first. Folders cannot be downloaded as a single item, so open the folder and select the files inside.
  </Accordion>

  <Accordion title="I cannot copy a link" icon="clipboard-x">
    **"Failed to copy link"** or **"Clipboard unavailable"** usually means the page is not on a secure connection. Use the site over HTTPS, or copy the link from your browser address bar.
  </Accordion>

  <Accordion title="'Failed to delete items'" icon="trash-2">
    Check that you have permission, close any open file tabs, then try again. Files in use by an active share can block deletion.
  </Accordion>
</AccordionGroup>

<Card title="Still stuck?" icon="life-buoy" href="mailto:support@dfine.io">
  Write to [support@dfine.io](mailto:support@dfine.io) and we will help you out.
</Card>