Columns (number, 1-based, comma separated):
Input
Output
<![CDATA[Id,YourRichTextField__c
xxxxX00000Ho69xxxx,"<ul><li>testing</li><li>testing3</li></ul>
test<strong>test<em>test<u>test<strike>test<br><br>test<a href=""http://morecpq.com"" target=""_blank"">testlink<br><br><img alt=""test"" src=""https://raw.githubusercontent.com/xeger/quill-image/main/assets/256x256.png"" style=""float: left; height: 267px; width: 500px;""></img></a><br>test</strike></u></em></strong>
<div style=""text-align: center;""><strong><em><u><strike>test</strike></u></em></strong></div>
<div style=""text-align: right;""><strong><em><u><strike>test</strike></u></em></strong></div>
<ol><li><strong><em><u><strike>test</strike></u></em></strong></li><li><strong><em><u><strike>test3</strike></u></em></strong></li></ol>"]]>