There are add-ons for this such as the Jira Cloud for Google sheets or the Jira for excel sheets. which you can download directly from Google apps or Microsoft apps. Last resort is to use the API to download but it doesn't combine it for you which is pain. However if you can code, you can use Pandas to combine multiple csv files together.
Hello @韦哲 ,
I think it's not possible to extend the limit.
Please check the below link.
For JSM June Challenge #2, share how your non-technical teams like HR, legal, marketing, finance, and beyond started using Jira Service Management! Tell us: Did they ask to start using it or...
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