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

# Files and artifacts

> Upload context and collect the outputs a thread produces.

A thread works with files in two directions: you bring files in as context (see [Thread and composer](/docs/sidekick/use/thread-and-composer) for attaching one with `@` or by dragging it in), and a thread produces files as it works. This page covers the second kind, the outputs a thread produces, often called artifacts.

## Where outputs live

<Steps>
  <Step title="In the thread that produced them">
    Every file a thread produces stays attached to that thread, next to the work that created it. Open the thread to see its outputs alongside the conversation that led to them.
  </Step>

  <Step title="In Settings → Files">
    Every output across your threads and projects also collects in one place, under **Settings → Files**. Go there when you want to find a file without hunting through the thread that made it.
  </Step>
</Steps>

## Preview, download, and restore

Outputs come in a few types: doc, sheet, code, and image. Click a file to preview it without leaving the page.

<Steps>
  <Step title="Preview">
    Open the file to see its content rendered in place, matching its type.
  </Step>

  <Step title="Download">
    Download the file to save a copy outside Sidekick.
  </Step>

  <Step title="Check version history">
    Every edit to a file is kept in its version history, each entry with a change note describing what changed.
  </Step>

  <Step title="Restore an earlier version">
    Open version history and restore an earlier version if a later edit went the wrong way. Restoring doesn't erase the versions in between; they stay in the history.
  </Step>
</Steps>

## Scope files by project

From **Settings → Files**, filter the list down to a single project when you only want to see the outputs that belong to it, instead of every file across your work.

## Where to go next

<CardGroup cols={2}>
  <Card title="Thread and composer" icon="message-square" href="/docs/sidekick/use/thread-and-composer">
    The anatomy of a thread and how the composer sends work to it.
  </Card>

  <Card title="Projects" icon="folder-kanban" href="/docs/sidekick/use/projects">
    Group related threads, files, and context into a single project.
  </Card>
</CardGroup>