Hi @khadija,
If you have Jira Data Center version, Tempo worklog data comes together with the issue data. Therefore, you might try this option to import the description/comment.
Please read more about that in the community post here - Worklog comment import - #3 by martins.vanags.
However, the Tempo data for the Jira Cloud version is retrieved via separate data requests from Tempo, and the description/comment is not a part of that data request. Therefore, you might not get the description data in the Cloud version.
I upvoted the feature request in our backlog, but I cannot say when that might get implemented.
Regards,
Oskars / support@eazyBI.com