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<span class="sidebar-ad-text sidebar-ad-text-gradient">Download Langflow Desktop</span>
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</a>
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</li></ul></nav></div></div></aside><main class="docMainContainer_TBSr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Components reference</span></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Core components</span></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Files</span></li><li class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link">Write File</span></li></ul></nav><div class="theme-doc-markdown markdown"><header><h1>Write File</h1></header><style>[data-ch-theme="github-dark"] { --ch-t-colorScheme: dark;--ch-t-foreground: #c9d1d9;--ch-t-background: #0d1117;--ch-t-lighter-inlineBackground: #0d1117e6;--ch-t-editor-background: #0d1117;--ch-t-editor-foreground: #c9d1d9;--ch-t-editor-lineHighlightBackground: #6e76811a;--ch-t-editor-rangeHighlightBackground: #ffffff0b;--ch-t-editor-infoForeground: #3794FF;--ch-t-editor-selectionBackground: #264F78;--ch-t-focusBorder: #1f6feb;--ch-t-tab-activeBackground: #0d1117;--ch-t-tab-activeForeground: #c9d1d9;--ch-t-tab-inactiveBackground: #010409;--ch-t-tab-inactiveForeground: #8b949e;--ch-t-tab-border: #30363d;--ch-t-tab-activeBorder: #0d1117;--ch-t-editorGroup-border: #30363d;--ch-t-editorGroupHeader-tabsBackground: #010409;--ch-t-editorLineNumber-foreground: #6e7681;--ch-t-input-background: #0d1117;--ch-t-input-foreground: #c9d1d9;--ch-t-input-border: #30363d;--ch-t-icon-foreground: #8b949e;--ch-t-sideBar-background: #010409;--ch-t-sideBar-foreground: #c9d1d9;--ch-t-sideBar-border: #30363d;--ch-t-list-activeSelectionBackground: #6e768166;--ch-t-list-activeSelectionForeground: #c9d1d9;--ch-t-list-hoverBackground: #6e76811a;--ch-t-list-hoverForeground: #c9d1d9; }</style>
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<!-- -->
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<p>In Langflow version 1.7.0, this component was renamed from <strong>Save File</strong> to <strong>Write File</strong>.</p>
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<p>The <strong>Write File</strong> component creates a file containing data produced by another component.
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Several file formats are supported, and you can store files in <a class="" href="/memory">Langflow storage</a>, AWS S3, Google Drive, or the local file system.</p>
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<p>To configure the <strong>Write File</strong> component and use it in a flow, do the following:</p>
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<ol>
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<li class="">
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<p>Connect <a class="" href="/data-types#dataframe"><code>DataFrame</code></a>, <a class="" href="/data-types#data"><code>Data</code></a>, or <a class="" href="/data-types#message"><code>Message</code></a> output from another component to the <strong>Write File</strong> component's <strong>Input</strong> port.</p>
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<p>You can connect the same output to multiple <strong>Write File</strong> components if you want to create multiple files, save the data in different file formats, or save files to multiple locations.</p>
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</li>
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<li class="">
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<p>In <strong>File Name</strong>, enter a file name and an optional path.</p>
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<p>The <strong>File Name</strong> parameter controls where the file is saved.
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It can contain a file name or an entire file path:</p>
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<ul>
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<li class="">
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<p><strong>Default location</strong>: If you only provide a file name, then the file is stored in the Langflow data directory. For example,<code>~/Library/Caches/langflow/data</code> on macOS.</p>
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</li>
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<li class="">
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<p><strong>Subdirectory</strong>: To store files in subdirectories, add the path to the <strong>File Name</strong> parameter.
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If a given subdirectory doesn't already exist, Langflow automatically creates it.
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For example, <code>files/my_file</code> creates <code>my_file</code> in <code>/data/files</code>, and it creates the <code>files</code> subdirectory if it doesn't already exist.</p>
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</li>
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<li class="">
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<p><strong>Absolute or relative path</strong>: To store files elsewhere in your environment or local file storage, provide the absolute or relative path to the desired location.
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For example, <code>~/Desktop/my_file</code> saves <code>my_file</code> to the desktop.</p>
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</li>
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</ul>
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<p>Don't include an extension in the file name.
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If you do, the extension is treated as part of the file name; it has no impact on the <strong>File Format</strong> parameter.</p>
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</li>
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<li class="">
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<p>In the <a class="" href="/concepts-components#component-menus">component's header menu</a>, click <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-sliders-horizontal" aria-hidden="true"><line x1="21" x2="14" y1="4" y2="4"></line><line x1="10" x2="3" y1="4" y2="4"></line><line x1="21" x2="12" y1="12" y2="12"></line><line x1="8" x2="3" y1="12" y2="12"></line><line x1="21" x2="16" y1="20" y2="20"></line><line x1="12" x2="3" y1="20" y2="20"></line><line x1="14" x2="14" y1="2" y2="6"></line><line x1="8" x2="8" y1="10" y2="14"></line><line x1="16" x2="16" y1="18" y2="22"></line></svg> <strong>Controls</strong>, select the desired file format, and then click <strong>Close</strong>.</p>
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<p>The available <strong>File Format</strong> options depend on the input data type:</p>
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<ul>
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<li class="">
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<p><code>DataFrame</code> can be saved to CSV (default), Excel (requires <code>openpyxl</code> <a class="" href="/install-custom-dependencies">custom dependency</a>), JSON (fallback default), or Markdown.</p>
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</li>
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<li class="">
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<p><code>Data</code> can be saved to CSV, Excel (requires <code>openpyxl</code> <a class="" href="/install-custom-dependencies">custom dependency</a>), JSON (default), or Markdown.</p>
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</li>
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<li class="">
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<p><code>Message</code> can be saved to TXT, JSON (default), or Markdown.</p>
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</li>
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</ul>
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<div class="theme-admonition theme-admonition-warning admonition_xJq3 alert alert--warning"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 16 16"><path fill-rule="evenodd" d="M8.893 1.5c-.183-.31-.52-.5-.887-.5s-.703.19-.886.5L.138 13.499a.98.98 0 0 0 0 1.001c.193.31.53.501.886.501h13.964c.367 0 .704-.19.877-.5a1.03 1.03 0 0 0 .01-1.002L8.893 1.5zm.133 11.497H6.987v-2.003h2.039v2.003zm0-3.004H6.987V5.987h2.039v4.006z"></path></svg></span>Overwrites allowed</div><div class="admonitionContent_BuS1"><p>If you have multiple <strong>Write File</strong> components, in one or more flows, with the same file name, path, and extension, the file contains the data from the most recent run only.
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Langflow doesn't block overwrites if a matching file already exists.
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To avoid unintended overwrites, use unique file names and paths.</p></div></div>
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</li>
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<li class="">
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<p>To test the <strong>Write File</strong> component, click <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-play" aria-hidden="true"><polygon points="6 3 20 12 6 21 6 3"></polygon></svg> <strong>Run component</strong>, and then click <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-text-search" aria-hidden="true"><path d="M21 6H3"></path><path d="M10 12H3"></path><path d="M10 18H3"></path><circle cx="17" cy="15" r="3"></circle><path d="m21 19-1.9-1.9"></path></svg> <strong>Inspect output</strong> to get the filepath where the file was saved.</p>
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<p>The component's literal output is a <code>Message</code> containing the original data type, the file name and extension, and the absolute filepath to the file based on the <strong>File Name</strong> parameter.
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For example:</p>
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<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>DataFrame saved successfully as 'my_file.csv' at /Users/user.name/Library/Caches/langflow/data/my_file.csv</span></div></div><br></code></div></div>
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<p>If the <strong>File Name</strong> contains a subdirectory or other non-default path, this is reflected in the <code>Message</code> output.
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For example, a CSV file with the file name <code>~/Desktop/my_file</code> could produce the following output:</p>
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<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>DataFrame saved successfully as '/Users/user.name/Desktop/my_file.csv' at /Users/user.name/Desktop/my_file.csv</span></div></div><br></code></div></div>
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</li>
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<li class="">
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<p>Optional: If you want to use the saved file in a flow, you must use an API call or another component to retrieve the file from the given filepath.</p>
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</li>
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</ol></div></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/read-file"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Read File</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/if-else"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">If-Else</div></a></nav></div></div></div></div></main></div></div></div><footer class="theme-layout-footer footer"><div class="container container-fluid"><div class="row footer__links"><div class="theme-layout-footer-column col footer__col"><div class="footer__title"></div><ul class="footer__items clean-list"><li class="footer__item"><div class="footer-links">
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