Excel Spreadsheet Viewer

WebViewer Version:

Do you have an issue with a specific file(s)?
Can you reproduce using one of our samples or online demos?
Are you using the WebViewer server?
Does the issue only happen on certain browsers?
Is your issue related to a front-end framework?
Is your issue related to annotations?

Please give a brief summary of your issue:
(Think of this as an email subject)
Getting this error when loading a confidential client spreadsheet. My guess is it’s something to do with formulas?

Please describe your issue and provide steps to reproduce it:
(The more descriptive your answer, the faster we are able to help you)

Please provide a link to a minimal sample where the issue is reproducible:

Hello, I’m AiRon, an automated tech support bot :robot:
While you wait for one of our customer support representatives, I can help you with your question.


It seems you’re encountering an issue with loading a spreadsheet in the WebViewer, possibly related to formulas. This can sometimes happen if the spreadsheet contains complex functions or unsupported features that the WebViewer cannot process.

Some things you can try:

  • Ensure the spreadsheet is not using any advanced Excel features that might not be supported by WebViewer.

  • Check if the issue persists with different browsers to rule out browser-specific problems.

  • Attempt to load a simpler version of the spreadsheet to identify if specific formulas are causing the issue.

  • Verify if the WebViewer server is being used and ensure it is configured correctly.



Here are some resources that might help you:


Hopefully, this helps you solve your problem while you wait for a human to get back to you.

1 Like

Hi Neel,

Thank you for reaching out.

To investigate further:

  1. Can you give us the version of Webviewer you are currently using (there is a console log at the start)
  2. Can you provide the file sample that generates this issue? We need this to reproduce the issue internally.
  3. Can you provide a code snippet of the Webviewer constructor and options?

If this information is too private to be posted here, I invite you to create a ticket for our support:

Best Regards,
Mickaël.

1 Like

Hi Neel,

We haven’t heard back from you for several days, so we are reaching out to see if you still require assistance with this issue.

Best Regards,
Mickaël.

1 Like