If thinking of OLM file to CSV conversion, MacSonik OLM to CSV Converter is the best and most reliable utility. The software allows users to convert Outlook for Mac OLM files to CSV efficiently, without affecting the original data. Apart from this, it supports multiple built-in features that make it an advanced utility. This tool allows users to select any number of OLM files and convert them to CSV files at once. Furthermore, it neither slows down the process nor hampers the quality of the output CSV file.