Yeah, more details may be useful. I found this article that seems related and may provide some insights: https://blog.deviniti.com/atlassian/how-to-export-jira-issues-to-excel/
When you say it's not working, what do you experience exactly? There is another question where someone was having an issue with their export, i wonder if it's similar to your problem: https://community.atlassian.com/t5/Jira-Core-questions/Export-to-CSV-with-All-Fields-not-working-in-Jira-v7-13-0/qaq-p/1010774
Can you provide more details about the function not working?
I have not seen the export of Excel CSV fail on the Issue List and we use it on a daily basis, along with "Better PDF Exporter".
In your console, do you see any errors occur when the exporting exists? In the network tab, when you create the exportation, and you see it fail, are you able to save the request in the network tab as a har file?
Please make sure no confidential information is being exported while creating the har.
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