Keyboard Shortcuts Open Close New File

Opening, closing, and creating new files are actions you perform constantly throughout a workday. These three shortcuts form a core set that applies across almost every application you use — and together they give you full control over your files without touching the mouse.

New File — Ctrl + N (Windows) / ⌘ + N (Mac)

Ctrl + N creates a new file within the current application. The exact result depends on what app you have open.

  APPLICATION       CTRL + N CREATES
  ─────────────────────────────────────────────────
  Microsoft Word    New blank document
  Microsoft Excel   New blank workbook
  Google Chrome     New browser window
  File Explorer     New folder (in some versions)
  Notepad           New blank text file
  Photoshop         New canvas (opens size dialog)
  VS Code           New untitled text file

In most apps, Ctrl + N opens a fresh blank version — it does not close your current file. Both files remain open simultaneously.

New Window vs New Tab

In browsers and some applications, the difference between a new window and a new tab matters:

  BROWSER:
  Ctrl + N          → New browser window (separate window)
  Ctrl + T          → New tab (inside the same window)

  WHEN TO USE EACH:
  New Window (Ctrl+N) → Working on two separate tasks side by side
  New Tab (Ctrl+T)    → Opening a new page while staying in the same session

Open File — Ctrl + O (Windows) / ⌘ + O (Mac)

Ctrl + O opens the file browser dialog, allowing you to navigate your computer and select a file to open in the current application.

  CTRL + O WORKFLOW:
  Press Ctrl + O
       │
       ▼
  File browser dialog opens
       │
       ▼
  Navigate to the file location
       │
       ▼
  Double-click the file OR select it + press Enter
       │
       ▼
  File opens in the application

Quick Open — Ctrl + O vs Double-Click

  DOUBLE-CLICK METHOD:
  Switch to File Explorer window
  → Navigate to the file location
  → Double-click the file
  → Application launches (if not already open)
  Time: ~8–12 seconds

  CTRL + O METHOD (from within the app):
  Press Ctrl + O
  → File dialog opens in the app's last-used folder
  → Navigate if needed → Enter
  Time: ~2–4 seconds

Ctrl + O is especially fast when the file you need is in the same folder you accessed recently, because most apps remember the last-opened location.

Close File — Ctrl + W (Windows) / ⌘ + W (Mac)

Ctrl + W closes the current file, tab, or document without quitting the application itself.

  CTRL + W BEHAVIOR:
  ─────────────────────────────────────────────────
  Word (with unsaved changes):
    → "Do you want to save changes?" dialog
    → Save / Don't Save / Cancel

  Word (no unsaved changes):
    → Closes the document immediately

  Chrome (with tabs open):
    → Closes the current tab
    → Other tabs remain open

  Chrome (last tab):
    → Closes the window entirely

Close vs Quit — Ctrl + W vs Alt + F4

This distinction confuses many beginners. Closing a file (Ctrl + W) and quitting an application (Alt + F4 on Windows, ⌘ + Q on Mac) are different actions.

  CTRL + W:
  Closes the current document/tab
  The application stays open
  Example: Close one Word document, Word remains running

  ALT + F4 (Windows) / ⌘ + Q (Mac):
  Closes the entire application
  All documents/tabs in that app close
  Example: Close Word entirely — all open documents close

  Diagram:
  Microsoft Word running with 3 documents open:
  [Doc1] [Doc2] [Doc3 ← active]

  Ctrl + W  →  [Doc1] [Doc2]   (Doc3 closed, Word still runs)
  Alt + F4  →  (Word closes entirely — all 3 docs close)

Reopen a Closed Tab — Ctrl + Shift + T

In browsers, if you accidentally close a tab, Ctrl + Shift + T reopens it immediately — even if you closed it several tabs ago. Press it multiple times to reopen multiple recently closed tabs in reverse order.

  Closed tab history (most recent first):
  1. facebook.com (most recently closed)
  2. news.com
  3. docs.google.com

  Ctrl+Shift+T → reopens facebook.com
  Ctrl+Shift+T → reopens news.com
  Ctrl+Shift+T → reopens docs.google.com

Open Recent Files

Instead of using Ctrl + O and navigating through folders, most applications let you open recently accessed files quickly:

  METHOD 1: Alt + F → R (in Microsoft Office)
  → Opens File menu → Recent files list

  METHOD 2: File → Recent Documents (mouse)

  METHOD 3: Windows — taskbar app icon
  → Right-click the app icon in the taskbar
  → "Recent" list appears (Jump List)
  → Click the file to open directly

Quick Reference

  ACTION               WINDOWS              MAC
  ────────────────────────────────────────────────
  New file             Ctrl + N             ⌘ + N
  New tab (browser)    Ctrl + T             ⌘ + T
  Open file            Ctrl + O             ⌘ + O
  Close file/tab       Ctrl + W             ⌘ + W
  Quit application     Alt + F4             ⌘ + Q
  Reopen closed tab    Ctrl + Shift + T     ⌘ + Shift + T

These six shortcuts cover every stage of working with files — creating, opening, and closing. Together with Save (Ctrl + S), they form a complete file management toolkit you can use entirely from the keyboard.