If you want to open PST files on Windows OS, try the SysInfo PST Viewer that exports PST files to various file formats, such as EML, EMLX, MSG, CSV, HTML, and DOC. One more benefit of this tool is that there is no limitation on PST file size, whether it is a small PST file or a large one. Along with this, the process is safe and quick, and it does not affect the processing speed of PST files. Additionally, the tool is suitable for all users. https://www.sysinfotools.com/recovery/pst-file-viewer.php