diff --git a/lib/Open/directory.js b/lib/Open/directory.js
index 0ffae26..f3dcea5 100644
--- a/lib/Open/directory.js
+++ b/lib/Open/directory.js
@@ -214,9 +214,10 @@ module.exports = function centralDirectory(source, options) {
         .then(function(comment) {
           vars.comment = comment;
           vars.type = (vars.uncompressedSize === 0 && /[\/\\]$/.test(vars.path)) ? 'Directory' : 'File';
+          var padding = options && options.padding || 1000;
           vars.stream = function(_password) {
             var totalSize = 30
-              + 10 // add an extra buffer
+              + padding // add an extra buffer
               + (vars.extraFieldLength || 0) 
               + (vars.fileNameLength || 0)
               + vars.compressedSize;
diff --git a/package.json b/package.json
index ec64ed2..22b688a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "unzipper",
-  "version": "0.11.5",
+  "version": "0.11.6",
   "description": "Unzip cross-platform streaming API ",
   "author": "Evan Oxfeld <eoxfeld@gmail.com>",
   "contributors": [
diff --git a/test/office-files.js b/test/office-files.js
new file mode 100644
index 0000000..c0f51c4
--- /dev/null
+++ b/test/office-files.js
@@ -0,0 +1,21 @@
+
+var test = require('tap').test;
+var fs = require('fs');
+var path = require('path');
+var unzip = require('../');
+var il = require('iconv-lite');
+var Promise = require('bluebird');
+
+test("get content a docx file without errors", async function (t) {
+  var archive = path.join(__dirname, '../testData/office/testfile.docx');
+
+  const directory = await unzip.Open.file(archive);
+  await Promise.all(directory.files.map(file => file.buffer()));
+});
+
+test("get content a xlsx file without errors", async function (t) {
+  var archive = path.join(__dirname, '../testData/office/testfile.xlsx');
+
+  const directory = await unzip.Open.file(archive);
+  await Promise.all(directory.files.map(file => file.buffer()));
+});
\ No newline at end of file
diff --git a/testData/office/testfile.docx b/testData/office/testfile.docx
new file mode 100644
index 0000000..3c76419
Binary files /dev/null and b/testData/office/testfile.docx differ
diff --git a/testData/office/testfile.xlsx b/testData/office/testfile.xlsx
new file mode 100644
index 0000000..591f700
Binary files /dev/null and b/testData/office/testfile.xlsx differ