Want to read as a string instead? Read How to read a file inside a ZIP archive as string using JSZip
In JSZip, you can read a compressed file as ArrayBuffer
using
zip.file("filename.txt").async("ArrayBuffer").then(function(data) { // data is an ArrayBuffer // TODO your code goes here })
Full example
This is based on our post on How to uncompress file inside ZIP archive using HTML5 & JSZip which reads a local file using a HTML5 file input:
<html> <body> <input type="file" id="myfile" onchange="onMyfileChange(this)" /> <script src="https://unpkg.com/[email protected]/dist/jszip.js" type="text/javascript"></script> <script type="text/javascript"> function onMyfileChange(fileInput) { if(fileInput.files[0] == undefined) { return ; } var filename = fileInput.files[0].name; var reader = new FileReader(); reader.onload = function(ev) { JSZip.loadAsync(ev.target.result).then(function(zip) { zip.file("word/document.xml").async("ArrayBuffer").then(function(data) { // data is an ArrayBuffer // TODO Your code goes here! }) }).catch(function(err) { console.error("Failed to open", filename, " as ZIP file:", err); }) }; reader.onerror = function(err) { console.error("Failed to read file", err); } reader.readAsArrayBuffer(fileInput.files[0]); } </script> </body> </html>