Converting issues with emails from Mac

Hi there,

I just downloaded libre office in order to convert my csv files to utf encoded so it will upload to my email marketing software and it’s coverts emails with bad extensions (example: yyahoo.commm and hotmail.commmm

Can you advise why it’s converting emails this way? Is it the way my character is set?

Would you please be so kind to consider to also show how exactly did you use it (step by step; if you used command line, then post it here), a sample input data (a file uploaded somewhere and the link posted here), and the result (with description what exactly is wrong). Otherwise be informed that some of readers of your question might have their crystal balls malfunctioning.