diff --git a/types/index.d.ts b/types/index.d.ts
index 469d8621b..a8970360a 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -6,7 +6,7 @@
 // Copyright (c) Microsoft Open Technologies, Inc.
 // Licensed under the MIT license.
 
-interface Window {
+export interface Window {
     /**
      * Requests a filesystem in which to store application data.
      * @param type              Whether the filesystem requested should be persistent, as defined above. Use one of TEMPORARY or PERSISTENT.
@@ -42,7 +42,7 @@ interface Window {
 }
 
 /** This interface represents a file system. */
-interface FileSystem {
+export interface FileSystem {
     /* The name of the file system, unique across the list of exposed file systems. */
     name: string;
     /** The root directory of the file system. */
@@ -53,7 +53,7 @@ interface FileSystem {
  * An abstract interface representing entries in a file system,
  * each of which may be a File or DirectoryEntry.
  */
-interface Entry {
+export interface Entry {
     /** Entry is a file. */
     isFile: boolean;
     /** Entry is a directory. */
@@ -137,7 +137,7 @@ interface Entry {
 }
 
 /** This interface supplies information about the state of a file or directory. */
-interface Metadata {
+export interface Metadata {
     /** This is the time at which the file or directory was last modified. */
     modificationTime: Date;
     /** The size of the file, in bytes. This must return 0 for directories. */
@@ -145,7 +145,7 @@ interface Metadata {
 }
 
 /** This interface represents a directory on a file system. */
-interface DirectoryEntry extends Entry {
+export interface DirectoryEntry extends Entry {
     /**
      * Creates a new DirectoryReader to read Entries from this Directory.
      */
@@ -197,7 +197,7 @@ interface DirectoryEntry extends Entry {
  * This dictionary is used to supply arguments to methods
  * that look up or create files or directories.
  */
-interface Flags {
+export interface Flags {
     /** Used to indicate that the user wants to create a file or directory if it was not previously there. */
     create?: boolean;
     /** By itself, exclusive must have no effect. Used with create, it must cause getFile and getDirectory to fail if the target path already exists. */
@@ -213,7 +213,7 @@ interface Flags {
  *     If not all entries have been returned, the array produced by readEntries must not be empty.
  *     The entries produced by readEntries must not include the directory itself ["."] or its parent [".."].
  */
-interface DirectoryReader {
+export interface DirectoryReader {
     /**
      * Read the next block of entries from this directory.
      * @param successCallback Called once per successful call to readEntries to deliver the next
@@ -228,7 +228,7 @@ interface DirectoryReader {
 }
 
 /** This interface represents a file on a file system. */
-interface FileEntry extends Entry {
+export interface FileEntry extends Entry {
     /**
      * Creates a new FileWriter associated with the file that this FileEntry represents.
      * @param successCallback A callback that is called with the new FileWriter.
@@ -250,7 +250,7 @@ interface FileEntry extends Entry {
  * This interface provides methods to monitor the asynchronous writing of blobs
  * to disk using progress events and event handler attributes.
  */
-interface FileSaver extends EventTarget {
+export interface FileSaver extends EventTarget {
     /** Terminate file operation */
     abort(): void;
     /**
@@ -281,7 +281,7 @@ interface FileSaver extends EventTarget {
  * This interface expands on the FileSaver interface to allow for multiple write
  * actions, rather than just saving a single Blob.
  */
-interface FileWriter extends FileSaver {
+export interface FileWriter extends FileSaver {
     /**
      * The byte offset at which the next write to the file will occur. This always less or equal than length.
      * A newly-created FileWriter will have position set to 0.
@@ -312,18 +312,18 @@ interface FileWriter extends FileSaver {
 }
 
 /* FileWriter states */
-declare var FileWriter: {
+export declare var FileWriter: {
     INIT: number;
     WRITING: number;
     DONE: number
 };
 
-interface FileError {
+export interface FileError {
     /** Error code */
     code: number;
 }
 
-declare var FileError: {
+export declare var FileError: {
     new (code: number): FileError;
     NOT_FOUND_ERR: number;
     SECURITY_ERR: number;
@@ -342,7 +342,7 @@ declare var FileError: {
 /*
  * Constants defined in fileSystemPaths
  */
-interface Cordova {
+export interface Cordova {
     file: {
         /* Read-only directory where the application is installed. */
         applicationDirectory: string;
@@ -372,7 +372,7 @@ interface Cordova {
 }
 
 
-declare enum LocalFileSystem {
+export declare enum LocalFileSystem {
     PERSISTENT=1,
     TEMPORARY=0
-}
\ No newline at end of file
+}