Follow the below working steps for converting your MBOX files into EML,HTML or PDF in Mac platform. The tool simply converts multiple MBOX files while maintaining proper HTML formatting which is described using the screenshots below.
Add the MBOX file using "add" option and then give the source file path.
Select the filter option for the output file.
Choose different Naming Convention for obtaining better search results while searching the output file.
Give the destination folder path where you want to save the output file.
Below screenshot shows a sample which is seen while selecting the destination file path in mac.
Click on Export after selecting the file path for output file.
Now your file is exported and converted successfully.