Not sure you are looking for this. Do you mean creating issues from excel data? You might want look into 'Import from CSV' feature which allows you to create issues from CSV or excel. You can also update existing issues as well.
Have a look at here https://confluence.atlassian.com/adminjiraserver071/importing-data-from-csv-802592885.html
Hi Julian
You can add an attachment of an Excel workbook, which can show inline in either the Description field or a Comment - is that what you're after?
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