diff --git a/.eslintignore b/.eslintignore
index a082fb74f..3346de4bf 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -97,7 +97,6 @@ src/Explorer/Menus/CommandBar/CommandBarComponentButtonFactory.test.ts
 src/Explorer/Menus/CommandBar/CommandBarComponentButtonFactory.ts
 src/Explorer/Menus/ContextMenu.ts
 src/Explorer/MostRecentActivity/MostRecentActivity.ts
-src/Explorer/Notebook/FileSystemUtil.ts
 src/Explorer/Notebook/NotebookClientV2.ts
 src/Explorer/Notebook/NotebookComponent/NotebookContentProvider.ts
 src/Explorer/Notebook/NotebookComponent/__mocks__/rx-jupyter.ts
diff --git a/src/Explorer/Controls/NotebookGallery/Cards/GalleryCardComponent.tsx b/src/Explorer/Controls/NotebookGallery/Cards/GalleryCardComponent.tsx
index 54cac8db5..2f81cbb2b 100644
--- a/src/Explorer/Controls/NotebookGallery/Cards/GalleryCardComponent.tsx
+++ b/src/Explorer/Controls/NotebookGallery/Cards/GalleryCardComponent.tsx
@@ -18,7 +18,7 @@ import {
 } from "office-ui-fabric-react";
 import * as React from "react";
 import { IGalleryItem } from "../../../../Juno/JunoClient";
-import { FileSystemUtil } from "../../../Notebook/FileSystemUtil";
+import * as FileSystemUtil from "../../../Notebook/FileSystemUtil";
 import CosmosDBLogo from "../../../../../images/CosmosDB-logo.svg";
 
 export interface GalleryCardComponentProps {
diff --git a/src/Explorer/Controls/NotebookViewer/NotebookMetadataComponent.tsx b/src/Explorer/Controls/NotebookViewer/NotebookMetadataComponent.tsx
index 19962c554..ecdd12034 100644
--- a/src/Explorer/Controls/NotebookViewer/NotebookMetadataComponent.tsx
+++ b/src/Explorer/Controls/NotebookViewer/NotebookMetadataComponent.tsx
@@ -14,7 +14,7 @@ import {
 } from "office-ui-fabric-react";
 import * as React from "react";
 import { IGalleryItem } from "../../../Juno/JunoClient";
-import { FileSystemUtil } from "../../Notebook/FileSystemUtil";
+import * as FileSystemUtil from "../../Notebook/FileSystemUtil";
 import "./NotebookViewerComponent.less";
 import CosmosDBLogo from "../../../../images/CosmosDB-logo.svg";
 import { InfoComponent } from "../NotebookGallery/InfoComponent/InfoComponent";
diff --git a/src/Explorer/Explorer.tsx b/src/Explorer/Explorer.tsx
index 9c775b74f..758c3f604 100644
--- a/src/Explorer/Explorer.tsx
+++ b/src/Explorer/Explorer.tsx
@@ -44,7 +44,7 @@ import { DialogProps, TextFieldProps } from "./Controls/Dialog";
 import { GalleryTab } from "./Controls/NotebookGallery/GalleryViewerComponent";
 import { CommandBarComponentAdapter } from "./Menus/CommandBar/CommandBarComponentAdapter";
 import { ConsoleData, ConsoleDataType } from "./Menus/NotificationConsole/NotificationConsoleComponent";
-import { FileSystemUtil } from "./Notebook/FileSystemUtil";
+import * as FileSystemUtil from "./Notebook/FileSystemUtil";
 import { NotebookContentItem, NotebookContentItemType } from "./Notebook/NotebookContentItem";
 import { NotebookUtil } from "./Notebook/NotebookUtil";
 import AddCollectionPane from "./Panes/AddCollectionPane";
diff --git a/src/Explorer/Notebook/FileSystemUtil.ts b/src/Explorer/Notebook/FileSystemUtil.ts
index ec0899d41..41bb06b8a 100644
--- a/src/Explorer/Notebook/FileSystemUtil.ts
+++ b/src/Explorer/Notebook/FileSystemUtil.ts
@@ -1,37 +1,33 @@
-// Utilities for file system
-
-export class FileSystemUtil {
-  /**
-   * file list returns path starting with ./blah
-   * rename returns simply blah.
-   * Both are the same. This method only handles these two cases and no other complicated paths that may contain ..
-   * ./ inside the path.
-   * TODO: this should go away when not using jupyter for file operations and use normalized paths.
-   * @param path1
-   * @param path2
-   */
-  public static isPathEqual(path1: string, path2: string): boolean {
-    const normalize = (path: string): string => {
-      const dotSlash = "./";
-      if (path.indexOf(dotSlash) === 0) {
-        path = path.substring(dotSlash.length);
-      }
-      return path;
-    };
-
-    return normalize(path1) === normalize(path2);
-  }
-
-  /**
-   * Remove extension
-   * @param path
-   * @param extension Without the ".". e.g. "ipynb" (and not ".ipynb")
-   */
-  public static stripExtension(path: string, extension: string): string {
-    const splitted = path.split(".");
-    if (splitted[splitted.length - 1] === extension) {
-      splitted.pop();
+/**
+ * file list returns path starting with ./blah
+ * rename returns simply blah.
+ * Both are the same. This method only handles these two cases and no other complicated paths that may contain ..
+ * ./ inside the path.
+ * TODO: this should go away when not using jupyter for file operations and use normalized paths.
+ * @param path1
+ * @param path2
+ */
+export function isPathEqual(path1: string, path2: string): boolean {
+  const normalize = (path: string): string => {
+    const dotSlash = "./";
+    if (path.indexOf(dotSlash) === 0) {
+      path = path.substring(dotSlash.length);
     }
-    return splitted.join(".");
-  }
+    return path;
+  };
+
+  return normalize(path1) === normalize(path2);
+}
+
+/**
+ * Remove extension
+ * @param path
+ * @param extension Without the ".". e.g. "ipynb" (and not ".ipynb")
+ */
+export function stripExtension(path: string, extension: string): string {
+  const splitted = path.split(".");
+  if (splitted[splitted.length - 1] === extension) {
+    splitted.pop();
+  }
+  return splitted.join(".");
 }
diff --git a/src/Explorer/Notebook/NotebookComponent/epics.ts b/src/Explorer/Notebook/NotebookComponent/epics.ts
index 2914c6d8e..544f80bf4 100644
--- a/src/Explorer/Notebook/NotebookComponent/epics.ts
+++ b/src/Explorer/Notebook/NotebookComponent/epics.ts
@@ -44,7 +44,7 @@ import { CdbAppState } from "./types";
 import { decryptJWTToken } from "../../../Utils/AuthorizationUtils";
 import * as TextFile from "./contents/file/text-file";
 import { NotebookUtil } from "../NotebookUtil";
-import { FileSystemUtil } from "../FileSystemUtil";
+import * as FileSystemUtil from "../FileSystemUtil";
 import * as cdbActions from "../NotebookComponent/actions";
 import { Areas } from "../../../Common/Constants";
 
diff --git a/src/Explorer/Notebook/NotebookContentClient.ts b/src/Explorer/Notebook/NotebookContentClient.ts
index 44ab852ee..6679a7e1d 100644
--- a/src/Explorer/Notebook/NotebookContentClient.ts
+++ b/src/Explorer/Notebook/NotebookContentClient.ts
@@ -1,12 +1,11 @@
-import * as DataModels from "../../Contracts/DataModels";
-import { NotebookContentItem, NotebookContentItemType } from "./NotebookContentItem";
-import * as StringUtils from "../../Utils/StringUtils";
-import { FileSystemUtil } from "./FileSystemUtil";
-import { NotebookUtil } from "./NotebookUtil";
-
-import { ServerConfig, IContent, IContentProvider, FileType, IEmptyContent } from "@nteract/core";
-import { AjaxResponse } from "rxjs/ajax";
 import { stringifyNotebook } from "@nteract/commutable";
+import { FileType, IContent, IContentProvider, IEmptyContent, ServerConfig } from "@nteract/core";
+import { AjaxResponse } from "rxjs/ajax";
+import * as DataModels from "../../Contracts/DataModels";
+import * as StringUtils from "../../Utils/StringUtils";
+import * as FileSystemUtil from "./FileSystemUtil";
+import { NotebookContentItem, NotebookContentItemType } from "./NotebookContentItem";
+import { NotebookUtil } from "./NotebookUtil";
 
 export class NotebookContentClient {
   constructor(
diff --git a/src/Explorer/Panes/PublishNotebookPaneAdapter.tsx b/src/Explorer/Panes/PublishNotebookPaneAdapter.tsx
index 704257fc5..e6028b29e 100644
--- a/src/Explorer/Panes/PublishNotebookPaneAdapter.tsx
+++ b/src/Explorer/Panes/PublishNotebookPaneAdapter.tsx
@@ -14,7 +14,7 @@ import { handleError, getErrorMessage, getErrorStack } from "../../Common/ErrorH
 import { GalleryTab } from "../Controls/NotebookGallery/GalleryViewerComponent";
 import { traceFailure, traceStart, traceSuccess } from "../../Shared/Telemetry/TelemetryProcessor";
 import { Action } from "../../Shared/Telemetry/TelemetryConstants";
-import { FileSystemUtil } from "../Notebook/FileSystemUtil";
+import * as FileSystemUtil from "../Notebook/FileSystemUtil";
 
 export class PublishNotebookPaneAdapter implements ReactAdapter {
   parameters: ko.Observable<number>;
diff --git a/src/Explorer/Panes/PublishNotebookPaneComponent.tsx b/src/Explorer/Panes/PublishNotebookPaneComponent.tsx
index 559bf3b09..1075ae5c2 100644
--- a/src/Explorer/Panes/PublishNotebookPaneComponent.tsx
+++ b/src/Explorer/Panes/PublishNotebookPaneComponent.tsx
@@ -1,7 +1,7 @@
 import { ITextFieldProps, Stack, Text, TextField, Dropdown, IDropdownProps } from "office-ui-fabric-react";
 import * as React from "react";
 import { GalleryCardComponent } from "../Controls/NotebookGallery/Cards/GalleryCardComponent";
-import { FileSystemUtil } from "../Notebook/FileSystemUtil";
+import * as FileSystemUtil from "../Notebook/FileSystemUtil";
 import "./PublishNotebookPaneComponent.less";
 import Html2Canvas from "html2canvas";
 import { ImmutableNotebook } from "@nteract/commutable/src";
diff --git a/src/NotebookViewer/NotebookViewer.tsx b/src/NotebookViewer/NotebookViewer.tsx
index 6af59d062..815e38c75 100644
--- a/src/NotebookViewer/NotebookViewer.tsx
+++ b/src/NotebookViewer/NotebookViewer.tsx
@@ -10,7 +10,7 @@ import {
 import { IGalleryItem, JunoClient } from "../Juno/JunoClient";
 import * as GalleryUtils from "../Utils/GalleryUtils";
 import { GalleryHeaderComponent } from "../Explorer/Controls/Header/GalleryHeaderComponent";
-import { FileSystemUtil } from "../Explorer/Notebook/FileSystemUtil";
+import * as FileSystemUtil from "../Explorer/Notebook/FileSystemUtil";
 import { GalleryTab } from "../Explorer/Controls/NotebookGallery/GalleryViewerComponent";
 
 const onInit = async () => {