I want to “import” a CSV file from Arduino to libre Office.Please correct my thinking if this software is incompatable
if this software is incompatable
You mentioned “PLX-DAQ” and “Arduino” together with LibreOffice; you also mentioned CSV. Which software you call “this” specifically in your question? Generally LibreOffice might not need anything third-party to import CSVs.
As PLX-DAQ seems to be an Excel Add-In, the answer is: No (I’m pretty sure that Excel Add-Ins do not work with LibreOffice)
If you want to import `.csv` files into Calc - see @mikekaganski's comment.