The basic save: Command+S

To save a Word document on a Mac, press Command+S (the Command key and the S key at the same time). A dialog box will appear asking where you want to save the file and what you want to name it. Type your filename, choose a location on your Mac, and click Save.

That's the quickest route. Word will save your document in its default format, which is .docx — the standard Microsoft Word format that works across Windows, Mac, and online versions of Word.

If you've already saved the document before, Command+S will simply update the existing file with your latest changes. You won't see the dialog box again unless you want to save it with a different name or in a different location.

Key Takeaways

  • Press Command+S to save any Word document on a Mac, and a dialog box will ask where to save it and what to name it.
  • Word saves documents as .docx files by default, which is compatible with Windows, other Macs, and online versions of Word.
  • Use File > Save As to save the same document with a new name or in a different format without overwriting the original.
  • The AutoSave feature in Word for Mac can save your work automatically if you're using OneDrive or SharePoint, but you need to turn it on in preferences.
  • If you want to save in a different format — like .pdf or .doc — use File > Save As and choose the format from the dropdown menu.

Where Word saves documents by default

When you press Command+S for the first time, Word opens a save dialog that shows your Mac's Documents folder. This is the default location, but you can navigate to any folder you want before clicking Save. Your Mac will remember the last folder you used, so the next time you save, the dialog will open to that same location.

If you're not sure where your document ended up, you can find it using Spotlight. Press Command+Space, type the filename, and your Mac will show you where it is stored. From there you can open it directly or move it to a different folder.

Save As: keeping the original and making a copy

If you want to save your document with a new name or in a different location without changing the original file, use File > Save As instead of Command+S. This opens the same save dialog, but it creates a new file rather than updating the one you're working on.

Save As is useful when you want to keep multiple versions of the same document — for example, saving "Budget 2024" and then later saving "Budget 2024 Final" as separate files. After you use Save As, Word switches to the new file, so any changes you make from that point forward go into the new version, not the original.

Saving in different formats

Word on a Mac can save documents in several formats beyond the standard .docx. When you use File > Save As, a dropdown menu near the bottom of the dialog shows format options. The most common alternatives are:

  • PDF — useful when you want to send a document that looks the same on any device and can't be easily edited
  • .doc — the older Microsoft Word format, sometimes needed if you're sending files to someone using very old software
  • Plain Text (.txt) — removes all formatting and saves only the words themselves
  • Word 97-2004 (.doc) — an older format that some organizations still require

If you save as PDF or plain text, Word will warn you that some formatting may be lost. This is normal — those formats don't support all the features that .docx does, like tracked changes or embedded images with captions.

AutoSave: letting Word save automatically

If your document is stored on OneDrive or SharePoint (Microsoft's cloud storage services), Word for Mac can save your work automatically as you type. This feature is called AutoSave, and it's turned off by default.

To turn on AutoSave, open Word, go to Word > Preferences, click Save, and check the box next to "AutoSave cloud files by default on this computer." Once it's on, Word will save changes every few seconds without you having to press Command+S. You'll see a small indicator at the top of the document showing when it last saved.

AutoSave only works with files stored on OneDrive or SharePoint, not with documents saved directly to your Mac's hard drive. If your document is on your Mac, you still need to press Command+S manually to save changes.

Troubleshooting: when a save doesn't work

If you press Command+S and nothing happens, the most common reason is that Word is waiting for you to name the file. Look for a dialog box that might be hidden behind other windows — click the Word icon in the Dock to bring it to the front.

If you see an error message saying the file can't be saved, check that you have permission to write to the folder you chose. Some folders on a Mac — like the System folder or certain shared drives — restrict who can save files there. Try saving to your Documents folder instead, which is always writable.

If Word crashes before you save, check the File menu for a "Recover Unsaved Documents" option. Word keeps temporary copies of recent work and can sometimes restore them, though this is not may provide. This is another reason AutoSave is useful — it saves your work constantly so you don't lose much if something goes wrong.

Frequently Asked Questions

What's the difference between Command+S and File > Save?

They do the same thing. Command+S is just the keyboard shortcut for File > Save. Using the keyboard is faster, but both methods save your document the same way.

Can I save a Word document as a Google Doc?

Not directly from Word. You would need to save the document as a .docx file first, then upload it to Google Drive and convert it there. Google Docs can open Word files, but the conversion happens in Google's system, not in Word itself.

Why does Word ask me to save when I close a document I haven't changed?

Word sometimes detects small changes you didn't intentionally make — like adjusting spacing or formatting when you opened the file. If you don't want to keep these changes, click "Don't Save" and the document will close without updating the file.

Is it safe to save documents to an external hard drive?

Yes, but Word works faster when files are on your Mac's internal drive. If you save to an external drive, make sure it's connected before you open the document, and avoid unplugging it while Word is open or saving.

What happens if I save over a file I didn't mean to overwrite?

The original version is replaced and can't be recovered through Word. This is why Save As is useful — it lets you create a new file instead of replacing the old one. If you accidentally overwrote something important, check your Mac's Trash folder to see if you can restore it from there.