Libreoffice has vastly superior CSV support compared to Microsoft office. The alternatives often have different strengths and weaknesses.

I’ve never had a problem working with CSVs in Excel, but I’ll take your word for it. For text operations, I frequently find myself using Notepad++ anyway.

I had a colleague who did most of his work in Excel but used LibreCalc when he had to open a weird CSV and then cobtinued working in Excel.

I've found not to trust excel for CSV's generally unless I build them manually in excel as a concatenation

Notepad++ has no problem displaying characters like checkmarks that Excel will mangle.

Definitely has everything I need and then some, a breath of fresh air compared to Jira.

It’s not an Excel alternative?

No it's a JIRA alternative.