Please ask questions about Quest in a Quest forum. You can ask questions about Excel in an Excel forum. This is a Microsoft Server/PowerShell forum for questions about using PowerShell with Microsoft products associated with Windows Server and
Active Directory. Quest is not a Microsoft product.
You can also find the Excel PowerShell module here:
https://devblogs.microsoft.com/scripting/introducing-the-powershell-excel-module-2/
CSV files are not Excel files. They are text files.
See:
help Import-Csv -online
\_(ツ)_/