diff --git a/archive-viewer/index.html b/archive-viewer/index.html
new file mode 100644
index 0000000..aed1b5f
--- /dev/null
+++ b/archive-viewer/index.html
@@ -0,0 +1,497 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>Applicant archive</title>
+  <style>
+    :root {
+      color-scheme: light;
+      font-family: Arial, sans-serif;
+      line-height: 1.4;
+      color: #0f172a;
+      background: #f8fafc;
+    }
+
+    * {
+      box-sizing: border-box;
+    }
+
+    html,
+    body {
+      height: 100%;
+      overflow: hidden;
+    }
+
+    body {
+      margin: 0;
+    }
+
+    button,
+    input {
+      font: inherit;
+    }
+
+    .layout {
+      display: flex;
+      height: 100vh;
+      overflow: hidden;
+    }
+
+    .sidebar {
+      width: min(32rem, 42vw);
+      min-width: 22rem;
+      min-height: 0;
+      padding: 1rem;
+      overflow-y: auto;
+      border-right: 1px solid #cbd5e1;
+      background: #ffffff;
+    }
+
+    .content {
+      flex: 1;
+      display: flex;
+      flex-direction: column;
+      min-width: 0;
+      min-height: 0;
+      overflow: hidden;
+    }
+
+    .content-header {
+      padding: 1rem 1.25rem;
+      border-bottom: 1px solid #cbd5e1;
+      background: #ffffff;
+    }
+
+    .content-header h1 {
+      margin: 0;
+      font-size: 1.25rem;
+    }
+
+    .content-header p {
+      margin: 0.35rem 0 0;
+      color: #475569;
+    }
+
+    .controls {
+      display: grid;
+      gap: 0.75rem;
+      margin-bottom: 1rem;
+      padding: 1rem;
+      border: 1px solid #e2e8f0;
+      border-radius: 0.75rem;
+      background: #f8fafc;
+    }
+
+    .controls p {
+      margin: 0;
+      color: #475569;
+    }
+
+    .controls input[type="file"] {
+      width: 100%;
+    }
+
+    .viewer {
+      flex: 1;
+      display: block;
+      width: 100%;
+      min-height: 0;
+      border: 0;
+      background: #e2e8f0;
+    }
+
+    .applicant-card {
+      margin-bottom: 1rem;
+      padding: 1rem;
+      border: 1px solid #e2e8f0;
+      border-radius: 0.75rem;
+      background: #f8fafc;
+    }
+
+    .applicant-card h2 {
+      margin: 0;
+      font-size: 1.05rem;
+    }
+
+    .applicant-title {
+      margin: 0.25rem 0 0.75rem;
+      color: #475569;
+    }
+
+    .info-list {
+      display: grid;
+      grid-template-columns: max-content 1fr;
+      gap: 0.35rem 0.75rem;
+      margin: 0;
+    }
+
+    .info-list dt {
+      font-weight: 700;
+    }
+
+    .info-list dd {
+      margin: 0;
+      overflow-wrap: anywhere;
+    }
+
+    .details-link {
+      display: inline-block;
+      margin-top: 0.75rem;
+      color: #0f6cbd;
+      text-decoration: none;
+    }
+
+    .details-link:hover {
+      text-decoration: underline;
+    }
+
+    .viewer-download {
+      color: #0f6cbd;
+      text-decoration: none;
+    }
+
+    .viewer-download:hover {
+      text-decoration: underline;
+    }
+
+    .file-list-title {
+      margin: 1rem 0 0.5rem;
+      font-size: 0.95rem;
+    }
+
+    .file-list {
+      margin: 0;
+      padding-left: 1.1rem;
+    }
+
+    .file-list li + li {
+      margin-top: 0.35rem;
+    }
+
+    .file-link {
+      color: #0f172a;
+      text-decoration: none;
+    }
+
+    .file-link:hover,
+    .file-link.active {
+      color: #0f6cbd;
+      text-decoration: underline;
+    }
+
+    .error {
+      margin: 0;
+      padding: 1rem;
+      color: #b91c1c;
+    }
+  </style>
+</head>
+<body>
+  <div class="layout">
+    <aside class="sidebar">
+      <section class="controls">
+        <p>Select the downloaded ZIP file to browse applicants and preview files.</p>
+        <input id="zip-input" type="file" accept=".zip,application/zip">
+        <p id="status">Waiting for ZIP selection...</p>
+      </section>
+      <div id="applicants"></div>
+    </aside>
+    <main class="content">
+      <div class="content-header">
+        <h1 id="viewer-title">Applicant archive</h1>
+        <p id="viewer-subtitle">Select the ZIP file, then choose a file on the left to preview it here.</p>
+        <a id="viewer-download" class="viewer-download" href="#" hidden>Download current file</a>
+      </div>
+      <iframe id="viewer" class="viewer" title="File preview"></iframe>
+    </main>
+  </div>
+  <script src="./jszip.min.js"></script>
+  <script>
+    let archive = null
+    let currentObjectUrl = null
+
+    function setStatus(message, isError) {
+      const status = document.getElementById("status")
+      status.textContent = message
+      status.className = isError ? "error" : ""
+    }
+
+    function parseCsv(text) {
+      const rows = []
+      let row = []
+      let value = ""
+      let index = 0
+      let insideQuotes = false
+
+      while (index < text.length) {
+        const char = text[index]
+
+        if (insideQuotes) {
+          if (char === '"') {
+            if (text[index + 1] === '"') {
+              value += '"'
+              index += 1
+            } else {
+              insideQuotes = false
+            }
+          } else {
+            value += char
+          }
+        } else if (char === '"') {
+          insideQuotes = true
+        } else if (char === ',') {
+          row.push(value)
+          value = ""
+        } else if (char === '\n') {
+          row.push(value)
+          rows.push(row)
+          row = []
+          value = ""
+        } else if (char === '\r') {
+        } else {
+          value += char
+        }
+
+        index += 1
+      }
+
+      row.push(value)
+      rows.push(row)
+      return rows.filter((currentRow) => currentRow.length > 1 || currentRow[0] !== "")
+    }
+
+    function normalizeText(value) {
+      return value || "—"
+    }
+
+    function guessMimeType(fileName) {
+      const extension = String(fileName || "").split(".").pop().toLowerCase()
+      const mimeTypes = {
+        csv: "text/csv;charset=utf-8",
+        gif: "image/gif",
+        htm: "text/html;charset=utf-8",
+        html: "text/html;charset=utf-8",
+        jpeg: "image/jpeg",
+        jpg: "image/jpeg",
+        pdf: "application/pdf",
+        png: "image/png",
+        svg: "image/svg+xml",
+        txt: "text/plain;charset=utf-8",
+        webp: "image/webp"
+      }
+
+      return mimeTypes[extension] || "application/octet-stream"
+    }
+
+    function getDisplayTitle(record) {
+      return [record.academic_title_before_name, record.professional_title, record.academic_title_after_name]
+        .filter(Boolean)
+        .join(" ")
+    }
+
+    function parseFiles(record) {
+      try {
+        const files = JSON.parse(record.files_json || "[]")
+        return Array.isArray(files) ? files : []
+      } catch (error) {
+        return []
+      }
+    }
+
+    function readApplicants(records) {
+      return records.map((record) => ({
+        ...record,
+        files: parseFiles(record)
+      }))
+    }
+
+    function resetViewer(message) {
+      const viewer = document.getElementById("viewer")
+      const viewerTitle = document.getElementById("viewer-title")
+      const viewerSubtitle = document.getElementById("viewer-subtitle")
+      const viewerDownload = document.getElementById("viewer-download")
+
+      if (currentObjectUrl != null) {
+        URL.revokeObjectURL(currentObjectUrl)
+        currentObjectUrl = null
+      }
+
+      document.querySelectorAll(".file-link.active").forEach((element) => {
+        element.classList.remove("active")
+      })
+
+      viewer.removeAttribute("src")
+      viewerTitle.textContent = "Applicant archive"
+      viewerSubtitle.textContent = message
+      viewerDownload.hidden = true
+      viewerDownload.removeAttribute("href")
+      viewerDownload.removeAttribute("download")
+    }
+
+    async function setViewer(file, link) {
+      if (archive == null) {
+        throw new Error("No archive loaded")
+      }
+
+      const zipEntry = archive.file(file.relativePath)
+      const viewer = document.getElementById("viewer")
+      const viewerTitle = document.getElementById("viewer-title")
+      const viewerSubtitle = document.getElementById("viewer-subtitle")
+      const viewerDownload = document.getElementById("viewer-download")
+
+      if (zipEntry == null) {
+        throw new Error("Missing archive entry: " + file.relativePath)
+      }
+
+      const blob = await zipEntry.async("blob")
+      const previewBlob = blob.type === "" ? new Blob([blob], { type: guessMimeType(file.fileName) }) : blob
+
+      if (currentObjectUrl != null) {
+        URL.revokeObjectURL(currentObjectUrl)
+      }
+
+      currentObjectUrl = URL.createObjectURL(previewBlob)
+      viewerTitle.textContent = file.fileName
+      viewerSubtitle.textContent = file.relativePath
+      viewer.src = currentObjectUrl
+      viewerDownload.href = currentObjectUrl
+      viewerDownload.download = file.fileName
+      viewerDownload.hidden = false
+
+      document.querySelectorAll(".file-link.active").forEach((element) => {
+        element.classList.remove("active")
+      })
+      link.classList.add("active")
+    }
+
+    function createInfoRow(label, value) {
+      const fragment = document.createDocumentFragment()
+      const dt = document.createElement("dt")
+      const dd = document.createElement("dd")
+      dt.textContent = label
+      dd.textContent = normalizeText(value)
+      fragment.append(dt, dd)
+      return fragment
+    }
+
+    function renderApplicants(applicants) {
+      const container = document.getElementById("applicants")
+      container.replaceChildren()
+
+      applicants.forEach((applicant) => {
+        const card = document.createElement("section")
+        const heading = document.createElement("h2")
+        const title = document.createElement("p")
+        const infoList = document.createElement("dl")
+        const detailsLink = document.createElement("a")
+        const fileListTitle = document.createElement("h3")
+        const fileList = document.createElement("ul")
+
+        card.className = "applicant-card"
+        heading.textContent = normalizeText(applicant.full_name_sorting_variant)
+        title.className = "applicant-title"
+        title.textContent = getDisplayTitle(applicant)
+        title.hidden = title.textContent === ""
+        infoList.className = "info-list"
+        detailsLink.className = "details-link"
+        detailsLink.href = applicant.details_url
+        detailsLink.textContent = "Open applicant details"
+        fileListTitle.className = "file-list-title"
+        fileListTitle.textContent = "Files"
+        fileList.className = "file-list"
+
+        infoList.append(
+          createInfoRow("E-mail", applicant.email),
+          createInfoRow("Gender", applicant.gender),
+          createInfoRow("Date of birth", applicant.date_of_birth),
+          createInfoRow("Nationalities", applicant.nationality_arr)
+        )
+
+        applicant.files.forEach((file) => {
+          const item = document.createElement("li")
+          const link = document.createElement("a")
+
+          link.className = "file-link"
+          link.href = "#"
+          link.textContent = file.fileName
+          link.addEventListener("click", async (event) => {
+            event.preventDefault()
+            try {
+              await setViewer(file, link)
+            } catch (error) {
+              setStatus(error.message, true)
+            }
+          })
+
+          item.append(link)
+          fileList.append(item)
+        })
+
+        if (applicant.files.length === 0) {
+          const empty = document.createElement("li")
+          empty.textContent = "No files"
+          fileList.append(empty)
+        }
+
+        card.append(heading, title, infoList, detailsLink, fileListTitle, fileList)
+        container.append(card)
+      })
+    }
+
+    async function loadArchive(file) {
+      if (typeof JSZip === "undefined") {
+        throw new Error("JSZip is not available")
+      }
+
+      setStatus("Loading " + file.name + "...", false)
+      const zip = await JSZip.loadAsync(file)
+      const csvEntry = zip.file("applicants.csv")
+
+      if (csvEntry == null) {
+        throw new Error("Archive does not contain applicants.csv")
+      }
+
+      const text = await csvEntry.async("string")
+      archive = zip
+      resetViewer("Select a file on the left to preview it here.")
+
+      if (text.trim() === "") {
+        renderApplicants([])
+        setStatus("applicants.csv is empty", false)
+        return
+      }
+
+      const rows = parseCsv(text)
+      const [header, ...records] = rows
+
+      if (header == null) {
+        throw new Error("Unable to parse applicants.csv")
+      }
+
+      const applicants = readApplicants(records.map((row) => Object.fromEntries(header.map((key, index) => [key, row[index] ?? ""]))))
+      renderApplicants(applicants)
+      setStatus("Loaded " + applicants.length + " applicants from " + file.name, false)
+    }
+
+    document.getElementById("zip-input").addEventListener("change", async (event) => {
+      const file = event.target.files && event.target.files[0]
+
+      if (file == null) {
+        return
+      }
+
+      try {
+        await loadArchive(file)
+      } catch (error) {
+        archive = null
+        document.getElementById("applicants").replaceChildren()
+        resetViewer("Unable to load the selected ZIP file.")
+        setStatus(error.message, true)
+      }
+    })
+
+    resetViewer("Select the ZIP file, then choose a file on the left to preview it here.")
+  </script>
+</body>
+</html>
diff --git a/content.js b/content.js
index f712e3b..1e2b5f2 100644
--- a/content.js
+++ b/content.js
@@ -219,504 +219,14 @@ function createApplicantsCsv(applicantDetailsList) {
   return rows.join("\n")
 }
 
-function createApplicantsIndexHtml() {
-  return `<!DOCTYPE html>
-<html lang="en">
-<head>
-  <meta charset="utf-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-  <title>Applicant archive</title>
-  <style>
-    :root {
-      color-scheme: light;
-      font-family: Arial, sans-serif;
-      line-height: 1.4;
-      color: #0f172a;
-      background: #f8fafc;
-    }
+async function getArchiveViewerHtmlSource() {
+  const response = await fetch(chrome.runtime.getURL("archive-viewer/index.html"))
 
-    * {
-      box-sizing: border-box;
-    }
+  if (!response.ok) {
+    throw new Error("Failed to load archive viewer HTML")
+  }
 
-    html,
-    body {
-      height: 100%;
-      overflow: hidden;
-    }
-
-    body {
-      margin: 0;
-    }
-
-    button,
-    input {
-      font: inherit;
-    }
-
-    .layout {
-      display: flex;
-      height: 100vh;
-      overflow: hidden;
-    }
-
-    .sidebar {
-      width: min(32rem, 42vw);
-      min-width: 22rem;
-      min-height: 0;
-      padding: 1rem;
-      overflow-y: auto;
-      border-right: 1px solid #cbd5e1;
-      background: #ffffff;
-    }
-
-    .content {
-      flex: 1;
-      display: flex;
-      flex-direction: column;
-      min-width: 0;
-      min-height: 0;
-      overflow: hidden;
-    }
-
-    .content-header {
-      padding: 1rem 1.25rem;
-      border-bottom: 1px solid #cbd5e1;
-      background: #ffffff;
-    }
-
-    .content-header h1 {
-      margin: 0;
-      font-size: 1.25rem;
-    }
-
-    .content-header p {
-      margin: 0.35rem 0 0;
-      color: #475569;
-    }
-
-    .controls {
-      display: grid;
-      gap: 0.75rem;
-      margin-bottom: 1rem;
-      padding: 1rem;
-      border: 1px solid #e2e8f0;
-      border-radius: 0.75rem;
-      background: #f8fafc;
-    }
-
-    .controls p {
-      margin: 0;
-      color: #475569;
-    }
-
-    .controls input[type="file"] {
-      width: 100%;
-    }
-
-    .viewer {
-      flex: 1;
-      display: block;
-      width: 100%;
-      min-height: 0;
-      border: 0;
-      background: #e2e8f0;
-    }
-
-    .applicant-card {
-      margin-bottom: 1rem;
-      padding: 1rem;
-      border: 1px solid #e2e8f0;
-      border-radius: 0.75rem;
-      background: #f8fafc;
-    }
-
-    .applicant-card h2 {
-      margin: 0;
-      font-size: 1.05rem;
-    }
-
-    .applicant-title {
-      margin: 0.25rem 0 0.75rem;
-      color: #475569;
-    }
-
-    .info-list {
-      display: grid;
-      grid-template-columns: max-content 1fr;
-      gap: 0.35rem 0.75rem;
-      margin: 0;
-    }
-
-    .info-list dt {
-      font-weight: 700;
-    }
-
-    .info-list dd {
-      margin: 0;
-      overflow-wrap: anywhere;
-    }
-
-    .details-link {
-      display: inline-block;
-      margin-top: 0.75rem;
-      color: #0f6cbd;
-      text-decoration: none;
-    }
-
-    .details-link:hover {
-      text-decoration: underline;
-    }
-
-    .viewer-download {
-      color: #0f6cbd;
-      text-decoration: none;
-    }
-
-    .viewer-download:hover {
-      text-decoration: underline;
-    }
-
-    .file-list-title {
-      margin: 1rem 0 0.5rem;
-      font-size: 0.95rem;
-    }
-
-    .file-list {
-      margin: 0;
-      padding-left: 1.1rem;
-    }
-
-    .file-list li + li {
-      margin-top: 0.35rem;
-    }
-
-    .file-link {
-      color: #0f172a;
-      text-decoration: none;
-    }
-
-    .file-link:hover,
-    .file-link.active {
-      color: #0f6cbd;
-      text-decoration: underline;
-    }
-
-    .error {
-      margin: 0;
-      padding: 1rem;
-      color: #b91c1c;
-    }
-  </style>
-</head>
-<body>
-  <div class="layout">
-    <aside class="sidebar">
-      <section class="controls">
-        <p>Select the downloaded ZIP file to browse applicants and preview files.</p>
-        <input id="zip-input" type="file" accept=".zip,application/zip">
-        <p id="status">Waiting for ZIP selection...</p>
-      </section>
-      <div id="applicants"></div>
-    </aside>
-    <main class="content">
-      <div class="content-header">
-        <h1 id="viewer-title">Applicant archive</h1>
-        <p id="viewer-subtitle">Select the ZIP file, then choose a file on the left to preview it here.</p>
-        <a id="viewer-download" class="viewer-download" href="#" hidden>Download current file</a>
-      </div>
-      <iframe id="viewer" class="viewer" title="File preview"></iframe>
-    </main>
-  </div>
-  <script src="jszip.min.js"></script>
-  <script>
-    let archive = null
-    let currentObjectUrl = null
-
-    function setStatus(message, isError) {
-      const status = document.getElementById("status")
-      status.textContent = message
-      status.className = isError ? "error" : ""
-    }
-
-    function parseCsv(text) {
-      const rows = []
-      let row = []
-      let value = ""
-      let index = 0
-      let insideQuotes = false
-
-      while (index < text.length) {
-        const char = text[index]
-
-        if (insideQuotes) {
-          if (char === '"') {
-            if (text[index + 1] === '"') {
-              value += '"'
-              index += 1
-            } else {
-              insideQuotes = false
-            }
-          } else {
-            value += char
-          }
-        } else if (char === '"') {
-          insideQuotes = true
-        } else if (char === ',') {
-          row.push(value)
-          value = ""
-        } else if (char === '\\n') {
-          row.push(value)
-          rows.push(row)
-          row = []
-          value = ""
-        } else if (char === '\\r') {
-        } else {
-          value += char
-        }
-
-        index += 1
-      }
-
-      row.push(value)
-      rows.push(row)
-      return rows.filter((currentRow) => currentRow.length > 1 || currentRow[0] !== "")
-    }
-
-    function normalizeText(value) {
-      return value || "—"
-    }
-
-    function guessMimeType(fileName) {
-      const extension = String(fileName || "").split(".").pop().toLowerCase()
-      const mimeTypes = {
-        csv: "text/csv;charset=utf-8",
-        gif: "image/gif",
-        htm: "text/html;charset=utf-8",
-        html: "text/html;charset=utf-8",
-        jpeg: "image/jpeg",
-        jpg: "image/jpeg",
-        pdf: "application/pdf",
-        png: "image/png",
-        svg: "image/svg+xml",
-        txt: "text/plain;charset=utf-8",
-        webp: "image/webp"
-      }
-
-      return mimeTypes[extension] || "application/octet-stream"
-    }
-
-    function getDisplayTitle(record) {
-      return [record.academic_title_before_name, record.professional_title, record.academic_title_after_name]
-        .filter(Boolean)
-        .join(" ")
-    }
-
-    function parseFiles(record) {
-      try {
-        const files = JSON.parse(record.files_json || "[]")
-        return Array.isArray(files) ? files : []
-      } catch (error) {
-        return []
-      }
-    }
-
-    function readApplicants(records) {
-      return records.map((record) => ({
-        ...record,
-        files: parseFiles(record)
-      }))
-    }
-
-    function resetViewer(message) {
-      const viewer = document.getElementById("viewer")
-      const viewerTitle = document.getElementById("viewer-title")
-      const viewerSubtitle = document.getElementById("viewer-subtitle")
-      const viewerDownload = document.getElementById("viewer-download")
-
-      if (currentObjectUrl != null) {
-        URL.revokeObjectURL(currentObjectUrl)
-        currentObjectUrl = null
-      }
-
-      document.querySelectorAll(".file-link.active").forEach((element) => {
-        element.classList.remove("active")
-      })
-
-      viewer.removeAttribute("src")
-      viewerTitle.textContent = "Applicant archive"
-      viewerSubtitle.textContent = message
-      viewerDownload.hidden = true
-      viewerDownload.removeAttribute("href")
-      viewerDownload.removeAttribute("download")
-    }
-
-    async function setViewer(file, link) {
-      if (archive == null) {
-        throw new Error("No archive loaded")
-      }
-
-      const zipEntry = archive.file(file.relativePath)
-      const viewer = document.getElementById("viewer")
-      const viewerTitle = document.getElementById("viewer-title")
-      const viewerSubtitle = document.getElementById("viewer-subtitle")
-      const viewerDownload = document.getElementById("viewer-download")
-
-      if (zipEntry == null) {
-        throw new Error("Missing archive entry: " + file.relativePath)
-      }
-
-      const blob = await zipEntry.async("blob")
-      const previewBlob = blob.type === "" ? new Blob([blob], { type: guessMimeType(file.fileName) }) : blob
-
-      if (currentObjectUrl != null) {
-        URL.revokeObjectURL(currentObjectUrl)
-      }
-
-      currentObjectUrl = URL.createObjectURL(previewBlob)
-      viewerTitle.textContent = file.fileName
-      viewerSubtitle.textContent = file.relativePath
-      viewer.src = currentObjectUrl
-      viewerDownload.href = currentObjectUrl
-      viewerDownload.download = file.fileName
-      viewerDownload.hidden = false
-
-      document.querySelectorAll(".file-link.active").forEach((element) => {
-        element.classList.remove("active")
-      })
-      link.classList.add("active")
-    }
-
-    function createInfoRow(label, value) {
-      const fragment = document.createDocumentFragment()
-      const dt = document.createElement("dt")
-      const dd = document.createElement("dd")
-      dt.textContent = label
-      dd.textContent = normalizeText(value)
-      fragment.append(dt, dd)
-      return fragment
-    }
-
-    function renderApplicants(applicants) {
-      const container = document.getElementById("applicants")
-      container.replaceChildren()
-
-      applicants.forEach((applicant) => {
-        const card = document.createElement("section")
-        const heading = document.createElement("h2")
-        const title = document.createElement("p")
-        const infoList = document.createElement("dl")
-        const detailsLink = document.createElement("a")
-        const fileListTitle = document.createElement("h3")
-        const fileList = document.createElement("ul")
-
-        card.className = "applicant-card"
-        heading.textContent = normalizeText(applicant.full_name_sorting_variant)
-        title.className = "applicant-title"
-        title.textContent = getDisplayTitle(applicant)
-        title.hidden = title.textContent === ""
-        infoList.className = "info-list"
-        detailsLink.className = "details-link"
-        detailsLink.href = applicant.details_url
-        detailsLink.textContent = "Open applicant details"
-        fileListTitle.className = "file-list-title"
-        fileListTitle.textContent = "Files"
-        fileList.className = "file-list"
-
-        infoList.append(
-          createInfoRow("E-mail", applicant.email),
-          createInfoRow("Gender", applicant.gender),
-          createInfoRow("Date of birth", applicant.date_of_birth),
-          createInfoRow("Nationalities", applicant.nationality_arr)
-        )
-
-        applicant.files.forEach((file) => {
-          const item = document.createElement("li")
-          const link = document.createElement("a")
-
-          link.className = "file-link"
-          link.href = "#"
-          link.textContent = file.fileName
-          link.addEventListener("click", async (event) => {
-            event.preventDefault()
-            try {
-              await setViewer(file, link)
-            } catch (error) {
-              setStatus(error.message, true)
-            }
-          })
-
-          item.append(link)
-          fileList.append(item)
-        })
-
-        if (applicant.files.length === 0) {
-          const empty = document.createElement("li")
-          empty.textContent = "No files"
-          fileList.append(empty)
-        }
-
-        card.append(heading, title, infoList, detailsLink, fileListTitle, fileList)
-        container.append(card)
-      })
-    }
-
-    async function loadArchive(file) {
-      if (typeof JSZip === "undefined") {
-        throw new Error("JSZip is not available")
-      }
-
-      setStatus("Loading " + file.name + "...", false)
-      const zip = await JSZip.loadAsync(file)
-      const csvEntry = zip.file("applicants.csv")
-
-      if (csvEntry == null) {
-        throw new Error("Archive does not contain applicants.csv")
-      }
-
-      const text = await csvEntry.async("string")
-      archive = zip
-      resetViewer("Select a file on the left to preview it here.")
-
-      if (text.trim() === "") {
-        renderApplicants([])
-        setStatus("applicants.csv is empty", false)
-        return
-      }
-
-      const rows = parseCsv(text)
-      const [header, ...records] = rows
-
-      if (header == null) {
-        throw new Error("Unable to parse applicants.csv")
-      }
-
-      const applicants = readApplicants(records.map((row) => Object.fromEntries(header.map((key, index) => [key, row[index] ?? ""]))))
-      renderApplicants(applicants)
-      setStatus("Loaded " + applicants.length + " applicants from " + file.name, false)
-    }
-
-    document.getElementById("zip-input").addEventListener("change", async (event) => {
-      const file = event.target.files && event.target.files[0]
-
-      if (file == null) {
-        return
-      }
-
-      try {
-        await loadArchive(file)
-      } catch (error) {
-        archive = null
-        document.getElementById("applicants").replaceChildren()
-        resetViewer("Unable to load the selected ZIP file.")
-        setStatus(error.message, true)
-      }
-    })
-
-    resetViewer("Select the ZIP file, then choose a file on the left to preview it here.")
-  </script>
-</body>
-</html>`
+  return response.text()
 }
 
 async function getArchiveViewerJsZipSource() {
@@ -945,7 +455,7 @@ function rip(event) {
       zip.file("applicants.csv", createApplicantsCsv(successfulApplicants))
 
       console.log("Creating index.html")
-      zip.file("index.html", createApplicantsIndexHtml())
+      zip.file("index.html", await getArchiveViewerHtmlSource())
 
       console.log("Adding viewer Javascript to archive")
       zip.file("jszip.min.js", await getArchiveViewerJsZipSource())
diff --git a/manifest.json b/manifest.json
index dd98771..d82c48f 100644
--- a/manifest.json
+++ b/manifest.json
@@ -23,6 +23,7 @@
   "web_accessible_resources": [
     {
       "resources": [
+        "archive-viewer/index.html",
         "lib/jszip.js",
         "lib/jszip.min.js"
       ],
