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SSSrini
User level: Level 1 (4 points)

Numbers not opening on iCloud web on MacBook

Numbers file is not opening on iCloud web on my MacBook, but opens on iPhone. It just hangs

Sometimes I get this error message

iWork encountered an error and is no longer usable.

4-5

Error: ChunkLoadError: Loading chunk 0 failed.

(error: https://www.icloud.com/applications/ix/15D120/editor/15D120/en-us/O.main.js)

JavaScript console contains more details.

00


Posted on Oct 22, 2026 8:05 AM

4 replies

sberman
User level: Level 10 (280,982 points)

Oct 22, 2026 12:42 PM in response to SSSrini

SSSrini wrote:
Numbers file is not opening on iCloud web on my MacBook

Why not simply use Apple’s Numbers app on your MacBook instead of the web?


If you don’t currently have the Numbers app on your MacBook instead, get it from the App Store.

Richard.Taylor
User level: Level 7 (25,466 points)

Oct 23, 2026 7:39 AM in response to SSSrini

I can understand your wanting to be able to open a numbers file from iCloud when using a browser on a non-Mac. On my MacBook, if I double-click on a numbers file in iCloud Drive at iCloud.com from my browser, it does indeed open in the web Numbers app. I've never actually done that before!


However, if I double click on a numbers file in my iCloud Drive on my Mac, it quickly opens in the Numbers app on my Mac, and it's much snappier.


In the browser version I don't run into the errors that you see. Maybe it would help if you gave us more information.

  1. Why do you want to run the numbers file from the web app rather than using the Mac Numbers app?
  2. What model is your Mac?
  3. What macOS does it use?
  4. Do you use “Optimize Storage” with iCloud Drive?
  5. …Have you checked to see if the Apple Account is really really the same on the Mac and at iCloud.com?
  6. …What is your storage at iCloud.com? At System Settings>[name]>iCloud>Storage , my Mac says 176 GB of 200 GB used. What does yours say?
  7. What is your storage on this Mac? At System Settings>General> Storage, my Mac says 745 GB of 1TBB used. What does yours say?
  8. Has this problem always existed, or did it just start? Can you think of anything that changed that might affect your device?


SSSrini Author
User level: Level 1 (4 points)

Oct 25, 2026 11:35 PM in response to Richard.Taylor

Hi Richard


I have a Mac book running Sequoia 15.8.1

There is no storage issues as I have a 1TB subscription

I solved this by opening the file on Firefox.... however this just doesn't open on Safari

Guess there must be some cached files on safari ... was not able to figure how to delete those




Richard.Taylor
User level: Level 7 (25,466 points)

Oct 26, 2026 7:41 AM in response to SSSrini

What is your storage on this Mac? At System Settings>General> Storage, my Mac says 745 GB of 1TBB used. What does yours say?


Originally posted at discussions.apple.com/thread/256380908