diff --git a/.eslintignore b/.eslintignore
index 8711bfaa6..d14b2995d 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -122,7 +122,6 @@ src/Explorer/Notebook/NotebookComponent/types.ts
 src/Explorer/Notebook/NotebookContainerClient.ts
 src/Explorer/Notebook/NotebookContentClient.ts
 src/Explorer/Notebook/NotebookContentItem.ts
-src/Explorer/Notebook/NotebookUtil.ts
 src/Explorer/OpenActions.test.ts
 src/Explorer/OpenActions.ts
 src/Explorer/OpenActionsStubs.ts
diff --git a/src/Explorer/Explorer.tsx b/src/Explorer/Explorer.tsx
index 41566fe63..b2450cbe3 100644
--- a/src/Explorer/Explorer.tsx
+++ b/src/Explorer/Explorer.tsx
@@ -49,7 +49,7 @@ import { LoadQueryPane } from "./Panes/LoadQueryPane";
 import * as Logger from "../Common/Logger";
 import { sendMessage, sendCachedDataMessage } from "../Common/MessageHandler";
 import { NotebookContentItem, NotebookContentItemType } from "./Notebook/NotebookContentItem";
-import { NotebookUtil } from "./Notebook/NotebookUtil";
+import * as NotebookUtil from "./Notebook/NotebookUtil";
 import { NotebookWorkspaceManager } from "../NotebookWorkspaceManager/NotebookWorkspaceManager";
 import * as NotificationConsoleUtils from "../Utils/NotificationConsoleUtils";
 import { QueriesClient } from "../Common/QueriesClient";
diff --git a/src/Explorer/Notebook/NotebookComponent/NotebookComponentBootstrapper.tsx b/src/Explorer/Notebook/NotebookComponent/NotebookComponentBootstrapper.tsx
index 2dc173fc6..e76163028 100644
--- a/src/Explorer/Notebook/NotebookComponent/NotebookComponentBootstrapper.tsx
+++ b/src/Explorer/Notebook/NotebookComponent/NotebookComponentBootstrapper.tsx
@@ -2,7 +2,7 @@ import * as React from "react";
 
 import { NotebookComponent } from "./NotebookComponent";
 import { NotebookClientV2 } from "../NotebookClientV2";
-import { NotebookUtil } from "../NotebookUtil";
+import * as NotebookUtil from "../NotebookUtil";
 
 // Vendor modules
 import {
diff --git a/src/Explorer/Notebook/NotebookComponent/epics.test.ts b/src/Explorer/Notebook/NotebookComponent/epics.test.ts
index ab5b7cbbe..067b5cb2e 100644
--- a/src/Explorer/Notebook/NotebookComponent/epics.test.ts
+++ b/src/Explorer/Notebook/NotebookComponent/epics.test.ts
@@ -8,7 +8,7 @@ import * as sinon from "sinon";
 
 import { CdbAppState, makeCdbRecord } from "./types";
 import { launchWebSocketKernelEpic } from "./epics";
-import { NotebookUtil } from "../NotebookUtil";
+import * as NotebookUtil from "../NotebookUtil";
 
 import { sessions } from "rx-jupyter";
 
diff --git a/src/Explorer/Notebook/NotebookComponent/epics.ts b/src/Explorer/Notebook/NotebookComponent/epics.ts
index 5b3e83ff6..39db7a7f7 100644
--- a/src/Explorer/Notebook/NotebookComponent/epics.ts
+++ b/src/Explorer/Notebook/NotebookComponent/epics.ts
@@ -43,7 +43,7 @@ import { Action as TelemetryAction, ActionModifiers } from "../../../Shared/Tele
 import { CdbAppState } from "./types";
 import { decryptJWTToken } from "../../../Utils/AuthorizationUtils";
 import * as TextFile from "./contents/file/text-file";
-import { NotebookUtil } from "../NotebookUtil";
+import * as NotebookUtil from "../NotebookUtil";
 import { 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 dfb5ab8c5..73f805c56 100644
--- a/src/Explorer/Notebook/NotebookContentClient.ts
+++ b/src/Explorer/Notebook/NotebookContentClient.ts
@@ -2,7 +2,7 @@ import * as DataModels from "../../Contracts/DataModels";
 import { NotebookContentItem, NotebookContentItemType } from "./NotebookContentItem";
 import { StringUtils } from "../../Utils/StringUtils";
 import { FileSystemUtil } from "./FileSystemUtil";
-import { NotebookUtil } from "./NotebookUtil";
+import * as NotebookUtil from "./NotebookUtil";
 
 import { ServerConfig, IContent, IContentProvider, FileType, IEmptyContent } from "@nteract/core";
 import { AjaxResponse } from "rxjs/ajax";
diff --git a/src/Explorer/Notebook/NotebookUtil.test.ts b/src/Explorer/Notebook/NotebookUtil.test.ts
index 5916c9d3a..b41c926f6 100644
--- a/src/Explorer/Notebook/NotebookUtil.test.ts
+++ b/src/Explorer/Notebook/NotebookUtil.test.ts
@@ -1,4 +1,4 @@
-import { NotebookUtil } from "./NotebookUtil";
+import * as NotebookUtil from "./NotebookUtil";
 import * as GitHubUtils from "../../Utils/GitHubUtils";
 import {
   ImmutableNotebook,
diff --git a/src/Explorer/Notebook/NotebookUtil.ts b/src/Explorer/Notebook/NotebookUtil.ts
index 519cbcd4d..d32ddfd7f 100644
--- a/src/Explorer/Notebook/NotebookUtil.ts
+++ b/src/Explorer/Notebook/NotebookUtil.ts
@@ -7,157 +7,155 @@ import * as GitHubUtils from "../../Utils/GitHubUtils";
 // Must match rx-jupyter' FileType
 export type FileType = "directory" | "file" | "notebook";
 // Utilities for notebooks
-export class NotebookUtil {
-  /**
-   * It's a notebook file if the filename ends with .ipynb.
-   */
-  public static isNotebookFile(notebookPath: string): boolean {
-    const fileName = NotebookUtil.getName(notebookPath);
-    return !!fileName && StringUtils.endsWith(fileName, ".ipynb");
-  }
+/**
+ * It's a notebook file if the filename ends with .ipynb.
+ */
+export function isNotebookFile(notebookPath: string): boolean {
+  const fileName = getName(notebookPath);
+  return !!fileName && StringUtils.endsWith(fileName, ".ipynb");
+}
 
-  /**
-   * Note: this does not connect the item to a parent in a tree.
-   * @param name
-   * @param path
-   */
-  public static createNotebookContentItem(name: string, path: string, type: FileType): NotebookContentItem {
-    return {
-      name,
-      path,
-      type: NotebookUtil.getType(type),
-      timestamp: NotebookUtil.getCurrentTimestamp(),
-    };
-  }
+/**
+ * Note: this does not connect the item to a parent in a tree.
+ * @param name
+ * @param path
+ */
+export function createNotebookContentItem(name: string, path: string, type: FileType): NotebookContentItem {
+  return {
+    name,
+    path,
+    type: getType(type),
+    timestamp: getCurrentTimestamp(),
+  };
+}
 
-  /**
-   * Convert rx-jupyter type to our type
-   * @param type
-   */
-  public static getType(type: FileType): NotebookContentItemType {
-    switch (type) {
-      case "directory":
-        return NotebookContentItemType.Directory;
-      case "notebook":
-        return NotebookContentItemType.Notebook;
-      case "file":
-        return NotebookContentItemType.File;
-      default:
-        throw new Error(`Unknown file type: ${type}`);
-    }
-  }
-
-  public static getCurrentTimestamp(): number {
-    return new Date().getTime();
-  }
-
-  /**
-   * Override from kernel-lifecycle.ts to improve kernel selection:
-   * Only return the kernel name persisted in the notebook
-   *
-   * @param filepath
-   * @param notebook
-   */
-  public static extractNewKernel(filepath: string | null, notebook: ImmutableNotebook) {
-    const cwd = (filepath && path.dirname(filepath)) || "/";
-
-    const kernelSpecName =
-      notebook.getIn(["metadata", "kernelspec", "name"]) || notebook.getIn(["metadata", "language_info", "name"]);
-
-    return {
-      cwd,
-      kernelSpecName,
-    };
-  }
-
-  public static getFilePath(path: string, fileName: string): string {
-    const contentInfo = GitHubUtils.fromContentUri(path);
-    if (contentInfo) {
-      let path = fileName;
-      if (contentInfo.path) {
-        path = `${contentInfo.path}/${path}`;
-      }
-      return GitHubUtils.toContentUri(contentInfo.owner, contentInfo.repo, contentInfo.branch, path);
-    }
-
-    return `${path}/${fileName}`;
-  }
-
-  public static getParentPath(filepath: string): undefined | string {
-    const basename = NotebookUtil.getName(filepath);
-    if (basename) {
-      const contentInfo = GitHubUtils.fromContentUri(filepath);
-      if (contentInfo) {
-        const parentPath = contentInfo.path.split(basename).shift();
-        if (parentPath === undefined) {
-          return undefined;
-        }
-
-        return GitHubUtils.toContentUri(
-          contentInfo.owner,
-          contentInfo.repo,
-          contentInfo.branch,
-          parentPath.replace(/\/$/, "") // no trailling slash
-        );
-      }
-
-      const parentPath = filepath.split(basename).shift();
-      if (parentPath) {
-        return parentPath.replace(/\/$/, ""); // no trailling slash
-      }
-    }
-
-    return undefined;
-  }
-
-  public static getName(path: string): undefined | string {
-    let relativePath: string = path;
-    const contentInfo = GitHubUtils.fromContentUri(path);
-    if (contentInfo) {
-      relativePath = contentInfo.path;
-    }
-
-    return relativePath.split("/").pop();
-  }
-
-  public static replaceName(path: string, newName: string): string {
-    const contentInfo = GitHubUtils.fromContentUri(path);
-    if (contentInfo) {
-      const contentName = contentInfo.path.split("/").pop();
-      if (!contentName) {
-        throw new Error(`Failed to extract name from github path ${contentInfo.path}`);
-      }
-
-      const basePath = contentInfo.path.split(contentName).shift();
-      return GitHubUtils.toContentUri(contentInfo.owner, contentInfo.repo, contentInfo.branch, `${basePath}${newName}`);
-    }
-
-    const contentName = path.split("/").pop();
-    if (!contentName) {
-      throw new Error(`Failed to extract name from path ${path}`);
-    }
-
-    const basePath = path.split(contentName).shift();
-    return `${basePath}${newName}`;
-  }
-
-  public static findFirstCodeCellWithDisplay(notebookObject: ImmutableNotebook): number {
-    let codeCellIndex = 0;
-    for (let i = 0; i < notebookObject.cellOrder.size; i++) {
-      const cellId = notebookObject.cellOrder.get(i);
-      if (cellId) {
-        const cell = notebookObject.cellMap.get(cellId);
-        if (cell?.cell_type === "code") {
-          const displayOutput = (cell as ImmutableCodeCell)?.outputs?.find(
-            (output) => output.output_type === "display_data" || output.output_type === "execute_result"
-          );
-          if (displayOutput) {
-            return codeCellIndex;
-          }
-          codeCellIndex++;
-        }
-      }
-    }
-    throw new Error("Output does not exist for any of the cells.");
+/**
+ * Convert rx-jupyter type to our type
+ * @param type
+ */
+export function getType(type: FileType): NotebookContentItemType {
+  switch (type) {
+    case "directory":
+      return NotebookContentItemType.Directory;
+    case "notebook":
+      return NotebookContentItemType.Notebook;
+    case "file":
+      return NotebookContentItemType.File;
+    default:
+      throw new Error(`Unknown file type: ${type}`);
   }
 }
+
+export function getCurrentTimestamp(): number {
+  return new Date().getTime();
+}
+
+/**
+ * Override from kernel-lifecycle.ts to improve kernel selection:
+ * Only return the kernel name persisted in the notebook
+ *
+ * @param filepath
+ * @param notebook
+ */
+export function extractNewKernel(filepath: string | null, notebook: ImmutableNotebook) {
+  const cwd = (filepath && path.dirname(filepath)) || "/";
+
+  const kernelSpecName =
+    notebook.getIn(["metadata", "kernelspec", "name"]) || notebook.getIn(["metadata", "language_info", "name"]);
+
+  return {
+    cwd,
+    kernelSpecName,
+  };
+}
+
+export function getFilePath(path: string, fileName: string): string {
+  const contentInfo = GitHubUtils.fromContentUri(path);
+  if (contentInfo) {
+    let path = fileName;
+    if (contentInfo.path) {
+      path = `${contentInfo.path}/${path}`;
+    }
+    return GitHubUtils.toContentUri(contentInfo.owner, contentInfo.repo, contentInfo.branch, path);
+  }
+
+  return `${path}/${fileName}`;
+}
+
+export function getParentPath(filepath: string): undefined | string {
+  const basename = getName(filepath);
+  if (basename) {
+    const contentInfo = GitHubUtils.fromContentUri(filepath);
+    if (contentInfo) {
+      const parentPath = contentInfo.path.split(basename).shift();
+      if (parentPath === undefined) {
+        return undefined;
+      }
+
+      return GitHubUtils.toContentUri(
+        contentInfo.owner,
+        contentInfo.repo,
+        contentInfo.branch,
+        parentPath.replace(/\/$/, "") // no trailling slash
+      );
+    }
+
+    const parentPath = filepath.split(basename).shift();
+    if (parentPath) {
+      return parentPath.replace(/\/$/, ""); // no trailling slash
+    }
+  }
+
+  return undefined;
+}
+
+export function getName(path: string): undefined | string {
+  let relativePath: string = path;
+  const contentInfo = GitHubUtils.fromContentUri(path);
+  if (contentInfo) {
+    relativePath = contentInfo.path;
+  }
+
+  return relativePath.split("/").pop();
+}
+
+export function replaceName(path: string, newName: string): string {
+  const contentInfo = GitHubUtils.fromContentUri(path);
+  if (contentInfo) {
+    const contentName = contentInfo.path.split("/").pop();
+    if (!contentName) {
+      throw new Error(`Failed to extract name from github path ${contentInfo.path}`);
+    }
+
+    const basePath = contentInfo.path.split(contentName).shift();
+    return GitHubUtils.toContentUri(contentInfo.owner, contentInfo.repo, contentInfo.branch, `${basePath}${newName}`);
+  }
+
+  const contentName = path.split("/").pop();
+  if (!contentName) {
+    throw new Error(`Failed to extract name from path ${path}`);
+  }
+
+  const basePath = path.split(contentName).shift();
+  return `${basePath}${newName}`;
+}
+
+export function findFirstCodeCellWithDisplay(notebookObject: ImmutableNotebook): number {
+  let codeCellIndex = 0;
+  for (let i = 0; i < notebookObject.cellOrder.size; i++) {
+    const cellId = notebookObject.cellOrder.get(i);
+    if (cellId) {
+      const cell = notebookObject.cellMap.get(cellId);
+      if (cell?.cell_type === "code") {
+        const displayOutput = (cell as ImmutableCodeCell)?.outputs?.find(
+          (output) => output.output_type === "display_data" || output.output_type === "execute_result"
+        );
+        if (displayOutput) {
+          return codeCellIndex;
+        }
+        codeCellIndex++;
+      }
+    }
+  }
+  throw new Error("Output does not exist for any of the cells.");
+}
diff --git a/src/Explorer/Panes/PublishNotebookPaneComponent.tsx b/src/Explorer/Panes/PublishNotebookPaneComponent.tsx
index 559bf3b09..587b3b409 100644
--- a/src/Explorer/Panes/PublishNotebookPaneComponent.tsx
+++ b/src/Explorer/Panes/PublishNotebookPaneComponent.tsx
@@ -5,7 +5,7 @@ import { FileSystemUtil } from "../Notebook/FileSystemUtil";
 import "./PublishNotebookPaneComponent.less";
 import Html2Canvas from "html2canvas";
 import { ImmutableNotebook } from "@nteract/commutable/src";
-import { NotebookUtil } from "../Notebook/NotebookUtil";
+import * as NotebookUtil from "../Notebook/NotebookUtil";
 
 export interface PublishNotebookPaneProps {
   notebookName: string;
diff --git a/src/Explorer/Tree/ResourceTreeAdapter.tsx b/src/Explorer/Tree/ResourceTreeAdapter.tsx
index 46831c9de..4601a9067 100644
--- a/src/Explorer/Tree/ResourceTreeAdapter.tsx
+++ b/src/Explorer/Tree/ResourceTreeAdapter.tsx
@@ -17,7 +17,7 @@ import NewNotebookIcon from "../../../images/notebook/Notebook-new.svg";
 import FileIcon from "../../../images/notebook/file-cosmos.svg";
 import PublishIcon from "../../../images/notebook/publish_content.svg";
 import { ArrayHashMap } from "../../Common/ArrayHashMap";
-import { NotebookUtil } from "../Notebook/NotebookUtil";
+import * as NotebookUtil from "../Notebook/NotebookUtil";
 import _ from "underscore";
 import { IPinnedRepo } from "../../Juno/JunoClient";
 import * as TelemetryProcessor from "../../Shared/Telemetry/TelemetryProcessor";
diff --git a/src/GitHub/GitHubClient.ts b/src/GitHub/GitHubClient.ts
index 016bca4b6..b15a28011 100644
--- a/src/GitHub/GitHubClient.ts
+++ b/src/GitHub/GitHubClient.ts
@@ -2,7 +2,7 @@ import { Octokit } from "@octokit/rest";
 import { HttpStatusCodes } from "../Common/Constants";
 import * as Logger from "../Common/Logger";
 import UrlUtility from "../Common/UrlUtility";
-import { NotebookUtil } from "../Explorer/Notebook/NotebookUtil";
+import * as NotebookUtil from "../Explorer/Notebook/NotebookUtil";
 import { getErrorMessage } from "../Common/ErrorHandlingUtils";
 
 export interface IGitHubPageInfo {
diff --git a/src/GitHub/GitHubContentProvider.ts b/src/GitHub/GitHubContentProvider.ts
index d8f45aa97..b7ffdf628 100644
--- a/src/GitHub/GitHubContentProvider.ts
+++ b/src/GitHub/GitHubContentProvider.ts
@@ -5,7 +5,7 @@ import { AjaxResponse } from "rxjs/ajax";
 import * as Base64Utils from "../Utils/Base64Utils";
 import { HttpStatusCodes } from "../Common/Constants";
 import * as Logger from "../Common/Logger";
-import { NotebookUtil } from "../Explorer/Notebook/NotebookUtil";
+import * as NotebookUtil from "../Explorer/Notebook/NotebookUtil";
 import { GitHubClient, IGitHubFile, IGitHubResponse } from "./GitHubClient";
 import * as GitHubUtils from "../Utils/GitHubUtils";
 import UrlUtility from "../Common/UrlUtility";