A file will not open in anything
Why does my Word document say the file is corrupt and will not open?
Written by The CommonFixes team · fact checked by CommonFixes review desk
Last updated
Short answer
The file was interrupted while saving, downloaded incompletely, or has the wrong extension attached to it. The quickest thing to try first: try the open and repair option — In Word or Excel, choose File, Open, Browse, select the file, then click the small arrow beside Open and choose Open and Repair. Most people are done in about 15 minutes.
Full walkthrough below: 5 steps for Windows and Mac, rated medium.
Sounds like this
- •Corrupt file message
- •Opens as strange symbols
- •Only one file affected
Why it happens
The file was interrupted while saving, downloaded incompletely, or has the wrong extension attached to it.
Work through these in order
0% done- 1
Try the Open and Repair option
In Word or Excel, choose File, Open, Browse, select the file, then click the small arrow beside Open and choose Open and Repair.
- 2
Look for an automatic recovery copy
In Word, choose File, Info, Manage Document, Recover Unsaved Documents. Office quietly keeps drafts here.
- 3
Check the file extension
Turn on file extensions in File Explorer under View. A file saved as .doc that is really a .docx will not open until renamed correctly.
- 4
Download it again
If it came from email or the web, download a fresh copy. Interrupted downloads produce exactly this behaviour.
- 5
Open it somewhere else
Upload the file to Google Docs or open it in LibreOffice. These often read damaged files that Office refuses.
If none of that worked
Ask the sender to save it in a different format, such as PDF or plain text, and resend it.
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Who wrote this and how we checked it
The CommonFixes team
Writer and researcher
We are a small group of people who spend our days repairing laptops and desktops for family, friends and small offices. Every guide here starts with a problem someone actually brought to us, and we only write down the steps that put the machine right.
- Everyday repairs
- Windows and Mac
- Plain language
CommonFixes review desk
Technical editor
Before a guide goes live, a second person walks through it on a real machine and checks each instruction against the maker's own support pages. Anything we cannot confirm is removed rather than guessed at.
- Fact checking
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This guide was last updated on 10 August 2026. If a step no longer matches what you see on screen, tell us on the contact page and we will test it again.
A gentle reminder: back up anything you cannot afford to lose before major repairs. If a step ever feels risky, stop and ask a technician. There is no shame in that.