diff --git a/extensions/google-meet/package.json b/extensions/google-meet/package.json
index 52544b4fbc1c..4c3b0ede9763 100644
--- a/extensions/google-meet/package.json
+++ b/extensions/google-meet/package.json
@@ -8,6 +8,7 @@
   },
   "type": "module",
   "dependencies": {
+    "jszip": "3.10.1",
     "pretty-ms": "9.3.0",
     "typebox": "1.3.3"
   },
diff --git a/extensions/google-meet/src/cli.test.ts b/extensions/google-meet/src/cli.test.ts
index d8097255b081..369ce0e48b72 100644
--- a/extensions/google-meet/src/cli.test.ts
+++ b/extensions/google-meet/src/cli.test.ts
@@ -3,6 +3,7 @@ import { existsSync, mkdtempSync, readFileSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
 import path from "node:path";
 import { Command } from "commander";
+import JSZip from "jszip";
 import { MAX_TIMER_TIMEOUT_MS } from "openclaw/plugin-sdk/number-runtime";
 import { afterAll, afterEach, describe, expect, it, vi } from "vitest";
 import { registerGoogleMeetCli, testing } from "./cli.js";
@@ -674,7 +675,8 @@ describe("google-meet CLI", () => {
       expectFields(firstRecord(firstRecord(artifacts.artifacts).transcripts), {
         documentText: "Transcript document body.",
       });
-      expect(readFileSync(`${tempDir}.zip`).subarray(0, 4).toString("hex")).toBe("504b0304");
+      const zip = await JSZip.loadAsync(readFileSync(`${tempDir}.zip`));
+      expect(await zip.file("summary.md")?.async("string")).toContain("# Google Meet Artifacts");
     } finally {
       stdout.restore();
       rmSync(tempDir, { recursive: true, force: true });
diff --git a/extensions/google-meet/src/cli.ts b/extensions/google-meet/src/cli.ts
index 40ec2773c467..ab875bcedbb5 100644
--- a/extensions/google-meet/src/cli.ts
+++ b/extensions/google-meet/src/cli.ts
@@ -3,8 +3,8 @@ import path from "node:path";
 import { createInterface } from "node:readline/promises";
 import { format } from "node:util";
 import type { Command } from "commander";
+import JSZip from "jszip";
 import { formatErrorMessage } from "openclaw/plugin-sdk/error-runtime";
-import { expectDefined } from "openclaw/plugin-sdk/expect-runtime";
 import { callGatewayFromCli } from "openclaw/plugin-sdk/gateway-runtime";
 import {
   clampTimerTimeoutMs,
@@ -1302,92 +1302,6 @@ function defaultExportDirectory(): string {
   return `google-meet-export-${new Date().toISOString().replace(/[:.]/g, "-")}`;
 }
 
-const CRC32_TABLE = new Uint32Array(
-  Array.from({ length: 256 }, (_, index) => {
-    let value = index;
-    for (let bit = 0; bit < 8; bit += 1) {
-      value = value & 1 ? 0xedb88320 ^ (value >>> 1) : value >>> 1;
-    }
-    return value >>> 0;
-  }),
-);
-
-function crc32(buffer: Buffer): number {
-  let value = 0xffffffff;
-  for (const byte of buffer) {
-    const tableValue = expectDefined(
-      CRC32_TABLE.at((value ^ byte) & 0xff),
-      "CRC32 lookup table entry",
-    );
-    value = tableValue ^ (value >>> 8);
-  }
-  return (value ^ 0xffffffff) >>> 0;
-}
-
-function dosDateTime(date = new Date()): { date: number; time: number } {
-  return {
-    time: (date.getHours() << 11) | (date.getMinutes() << 5) | Math.floor(date.getSeconds() / 2),
-    date: ((date.getFullYear() - 1980) << 9) | ((date.getMonth() + 1) << 5) | date.getDate(),
-  };
-}
-
-function buildZipArchive(files: Array<{ name: string; content: string }>): Buffer {
-  const localParts: Buffer[] = [];
-  const centralParts: Buffer[] = [];
-  let offset = 0;
-  const stamp = dosDateTime();
-  for (const file of files) {
-    const name = Buffer.from(file.name, "utf8");
-    const content = Buffer.from(file.content, "utf8");
-    const checksum = crc32(content);
-    const local = Buffer.alloc(30);
-    local.writeUInt32LE(0x04034b50, 0);
-    local.writeUInt16LE(20, 4);
-    local.writeUInt16LE(0, 6);
-    local.writeUInt16LE(0, 8);
-    local.writeUInt16LE(stamp.time, 10);
-    local.writeUInt16LE(stamp.date, 12);
-    local.writeUInt32LE(checksum, 14);
-    local.writeUInt32LE(content.length, 18);
-    local.writeUInt32LE(content.length, 22);
-    local.writeUInt16LE(name.length, 26);
-    local.writeUInt16LE(0, 28);
-    localParts.push(local, name, content);
-
-    const central = Buffer.alloc(46);
-    central.writeUInt32LE(0x02014b50, 0);
-    central.writeUInt16LE(20, 4);
-    central.writeUInt16LE(20, 6);
-    central.writeUInt16LE(0, 8);
-    central.writeUInt16LE(0, 10);
-    central.writeUInt16LE(stamp.time, 12);
-    central.writeUInt16LE(stamp.date, 14);
-    central.writeUInt32LE(checksum, 16);
-    central.writeUInt32LE(content.length, 20);
-    central.writeUInt32LE(content.length, 24);
-    central.writeUInt16LE(name.length, 28);
-    central.writeUInt16LE(0, 30);
-    central.writeUInt16LE(0, 32);
-    central.writeUInt16LE(0, 34);
-    central.writeUInt16LE(0, 36);
-    central.writeUInt32LE(0, 38);
-    central.writeUInt32LE(offset, 42);
-    centralParts.push(central, name);
-    offset += local.length + name.length + content.length;
-  }
-  const centralDirectory = Buffer.concat(centralParts);
-  const end = Buffer.alloc(22);
-  end.writeUInt32LE(0x06054b50, 0);
-  end.writeUInt16LE(0, 4);
-  end.writeUInt16LE(0, 6);
-  end.writeUInt16LE(files.length, 8);
-  end.writeUInt16LE(files.length, 10);
-  end.writeUInt32LE(centralDirectory.length, 12);
-  end.writeUInt32LE(offset, 16);
-  end.writeUInt16LE(0, 20);
-  return Buffer.concat([...localParts, centralDirectory, end]);
-}
-
 export async function writeMeetExportBundle(params: {
   outputDir?: string;
   artifacts: GoogleMeetArtifactsResult;
@@ -1435,7 +1349,11 @@ export async function writeMeetExportBundle(params: {
     files: files.map((file) => path.join(outputDir, file.name)),
   };
   if (zipFile) {
-    await writeFile(zipFile, buildZipArchive(files));
+    const zip = new JSZip();
+    for (const file of files) {
+      zip.file(file.name, file.content);
+    }
+    await writeFile(zipFile, await zip.generateAsync({ type: "nodebuffer" }));
     result.zipFile = zipFile;
   }
   return result;
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2c6f01ab1660..6f4e6f703f8c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -853,6 +853,9 @@ importers:
 
   extensions/google-meet:
     dependencies:
+      jszip:
+        specifier: 3.10.1
+        version: 3.10.1
       pretty-ms:
         specifier: 9.3.0
         version: 9.3.0