The quickest way to convert PST file to CSV format is to use Microsoft Outlook or a trusted email conversion tool. In Outlook, you can open the PST file, go to File > Open & Export > Import/Export, and select "Export to a file.” Then choose "Comma Separated Values (CSV)” and pick the folders you want to export, such as Contacts or Emails. Save the file and complete the export wizard. For large or multiple PST files, professional MSOutlookHelp PST converter tools can speed up the process by batch converting data directly to CSV without manual steps. These tools also help preserve folder structure and attachments. Always ensure you verify the output CSV in Excel or a text editor after conversion for accuracy and completeness before using it further.