https://tanaikech.github.io/tags/unzip/ Recent content in Unzip on tanaike - Google Apps Script, Gemini API, and Developer Tips Hugo ja &copy; 2026. All rights reserved. Fri, 26 Jul 2019 13:49:47 +0900 https://tanaikech.github.io/2019/07/26/gas-library-unzipgs/ Fri, 26 Jul 2019 13:49:47 +0900 https://tanaikech.github.io/2019/07/26/gas-library-unzipgs/ <h1 id="overview">Overview</h1> <p><strong>This is a GAS library for unzipping a Zip file protected by a password using Google Apps Script.</strong></p> <h1 id="description">Description</h1> <p>Recently, I had a situation that it is required to unzip a Zip file protected with the password. But unfortunately, in the current stage, the method of <a href="https://developers.google.com/apps-script/reference/utilities/utilities#unzipblob"><code>Utilities.unzip()</code></a> cannot unzip such protected files. So when I had been looking for the other workarounds, I found <a href="https://github.com/imaya/zlib.js"><code>zlib.js</code></a>. Especially, it&rsquo;s <a href="https://github.com/imaya/zlib.js/blob/develop/bin/unzip.min.js"><code>unzip.min.js</code></a>. This is created for Javascript. So when I used this using Google Apps Script, it was found that it didn&rsquo;t work for Google Apps Script. So I prepared a wrapper script for running it with Google Apps Script. And when I created the wrapper script, I thought that under the current stage, if the protected Zip file can be unzipped, this will be useful for other users. So I created this as a GAS library.</p>