No there is not a way currently to use a html table in a label. But there are some good discussions on mimicking that sort of appearance in these links:
Creating Labels with Related Table Data
What product/application is this question in reference to?
Robert, The product is ArcMap version 10.6.
Ok thank You!
Andrew B. Smith, P.G.
Project Geologist I
Direct 510.799.1932 | Cell 925.639.0013
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