The basic steps for editing any document

Modifying a document means opening a file you've already created, making changes to the text or formatting, and saving those changes. The exact steps depend on which editor you're using — Microsoft Word works differently from Google Docs, which works differently from LibreOffice — but the core process is the same across all of them: open the file, make your edits, save your work.

The most common mistake people make is closing a document without saving, which means your changes disappear. Most editors now warn you before this happens, but it's worth understanding how your specific editor handles unsaved work so you don't lose time.

Key Takeaways

  • Open your document by finding the file on your computer or in your cloud storage, then double-clicking it or opening it through your editor's File menu.
  • Click directly into the text where you want to make a change, then type new text, delete old text, or use the formatting buttons to change how text looks.
  • Save your changes by pressing Ctrl+S on Windows or Command+S on Mac, or by clicking File and then Save.
  • Cloud-based editors like Google Docs save automatically as you type, while desktop editors like Word require you to save manually.
  • If you make a mistake, press Ctrl+Z (or Command+Z on Mac) to undo the last action, and you can undo multiple times to go back several steps.

Opening a document you've already created

The easiest way to open a document is to find the file itself and double-click it. On Windows, this usually means opening File Explorer, navigating to the folder where you saved the document, and double-clicking the filename. On Mac, open Finder, navigate to the folder, and double-click the file. The document will open in whatever editor you used to create it — if you created it in Word, it opens in Word; if you created it in Google Docs, it opens in your web browser.

If you can't find the file or want to open it in a different editor, you can also open the editor first and then open the file from inside. In Word, click File at the top left, then click Open, then navigate to your file. In Google Docs, go to docs.google.com, and your recent documents appear on the screen — click the one you want. In LibreOffice, click File, then Open, then find your file.

If you're working with a document someone else sent you, check whether it's a shared document (usually a Google Doc or OneDrive file) or a standalone file attached to an email. Shared documents let multiple people edit at the same time, while attachments are separate copies that you'll need to send back to the other person when you're done.

Making text changes and using basic editing tools

Once your document is open, click anywhere in the text where you want to make a change. A blinking cursor appears at that spot. You can now type new text, which will appear at the cursor's location. To delete text, select it by clicking and dragging across the words you want to remove, then press Delete or Backspace.

Most editors have a toolbar at the top with buttons for formatting — making text bold, italic, underlined, or changing the font size and color. Select the text you want to format by clicking and dragging across it, then click the formatting button. For example, to make a word bold, select the word and click the B button (or press Ctrl+B on Windows or Command+B on Mac).

You can also add new elements to your document. Most editors have an Insert menu where you can add tables, images, page breaks, headers and footers, or links. Click Insert at the top, then choose what you want to add. The editor will either open a dialog box asking for details or let you draw the element directly into your document.

Saving your changes

In desktop editors like Microsoft Word and LibreOffice, you must save manually. Press Ctrl+S on Windows or Command+S on Mac, or click File and then Save. The first time you save a new document, a dialog box appears asking where you want to save it and what you want to name it. After that, pressing Ctrl+S or Command+S saves your changes to the same file without asking.

In cloud-based editors like Google Docs, OneDrive, or iCloud Pages, the document saves automatically as you type. You'll see a small notification that says "Saving" or "Saved" near the top of the screen. This means you don't have to remember to save, but it also means changes take effect when ready — if you make a mistake and want to undo it, you need to act quickly before the auto-save locks it in.

If you want to save a document with a new name or in a different location, use Save As instead of Save. In Word or LibreOffice, click File, then Save As, then choose a new name or location. In Google Docs, click File, then read, then choose the format you want (such as Word or PDF) — this creates a copy in that format without changing the original Google Doc.

Undoing mistakes and fixing errors

If you make a mistake, press Ctrl+Z on Windows or Command+Z on Mac to undo the last action. You can press it multiple times to undo several actions in a row, stepping backward through your edits. This works in every major editor and is one of the most useful shortcuts to know.

If you undo something and then change your mind, press Ctrl+Y on Windows or Command+Y on Mac to redo it. Most editors also have Undo and Redo buttons in the toolbar — they usually look like curved arrows pointing left (undo) and right (redo).

In cloud-based editors like Google Docs, you can also see the full history of changes. Click File, then Version History, and you'll see every change made to the document, who made it, and when. You can click any earlier version to see what the document looked like at that point, and you can restore an older version if you need to.

Working with shared documents and tracking changes

If you're editing a document that other people can also edit, you may see their changes appear in real time. In Google Docs, you'll see a colored cursor with their name next to it as they type. In Word, if the document is stored on OneDrive or SharePoint, you can see other people's edits, and you can turn on Track Changes to see exactly what was added or removed.

Track Changes is a feature in Word that marks every edit with a color and the editor's name, so you can see who changed what. To turn it on, click the Review tab at the top, then click Track Changes. From that point on, deletions appear with a strikethrough, additions appear underlined, and you can accept or reject each change individually. This is useful when multiple people are reviewing a document and you want to keep a record of who suggested what.

In Google Docs, you can add comments instead of editing directly. Click the comment button (usually a speech bubble icon), select the text you want to comment on, and type your suggestion. The document owner can then accept or reject your suggestion without you having edit access.

Fixing common problems when editing

If your document won't open, the file may be corrupted or in a format your editor doesn't recognize. Try opening it in a different editor — for example, if Word won't open it, try Google Docs or LibreOffice. You can also try renaming the file extension (the three letters after the period in the filename) to match the editor you're using, though this only works if the file is actually in that format.

If you can't find where you saved a document, use your computer's search function. On Windows, press the Windows key and type the filename. On Mac, press Command+Space and type the filename. Both will search your entire computer and show you where the file is located.

If you're working on a shared document and your changes aren't appearing, check whether you have edit access. In Google Docs, the owner can set permissions so you can only view or comment, not edit. Ask the owner to give you editor access. In Word on OneDrive, the same applies — you may need to request access or have the owner change your permissions.

Frequently Asked Questions

What's the difference between Save and Save As?

Save updates the file you're currently working on with your new changes. Save As creates a copy of the document with a new name or in a new location, leaving the original unchanged. Use Save As when you want to keep an old version and start a new one, or when you want to save a copy in a different format.

Can I edit a document on my phone or tablet?

Yes, if you use a cloud-based editor like Google Docs or Microsoft Word Online. read the Google Docs app or Word app on your phone, sign in, and open your document. Desktop editors like LibreOffice don't have phone versions, so you'd need to use a cloud editor or a phone-specific app instead.

What happens if I close a document without saving?

Your changes disappear, and the document reverts to its last saved version. Most editors warn you before closing an unsaved document and ask if you want to save. If you accidentally close without saving, check whether your editor has a recovery feature — Word and Google Docs both keep temporary backups that you may be able to restore.

Can I edit a PDF document?

PDFs are designed to be read, not edited, but some editors can modify them. Microsoft Word can open PDFs and let you edit them, though the formatting may shift. Google Docs can also open PDFs. If you need to edit a PDF frequently, consider converting it to a Word document or using a dedicated PDF editor instead.

How do I know if my changes were saved?

In desktop editors like Word, look at the title bar — if there's an asterisk or dot next to the filename, you have unsaved changes. Once you save, it disappears. In cloud editors like Google Docs, you'll see "Saved" or a timestamp showing when the last save happened near the top of the screen.