With Update 2.4.0, EC365 has received Excel dropdown list support. The drop-down list contains the same options as in Jira instance for the chosen field.
Currently supported dropdown list fields are:
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The dropdown list is not available when is create a new issue, it appears immediately after the Export (1) action is performed.
The new feature is enabled by default after updating / installing v2.4.0, it is possible to deactivate it in the EC365 https://psc-software.atlassian.net/wiki/spaces/ECSD365/pages/2412281857/Settings#Optimization
Dropdowns are not available in Read-only mode