Outlook PST files can be compressed using Softaken Compress PST software. PST data can be compressed more quickly by using bulk compression. The program can reduce files of any size because it supports both ANSI and Unicode PST file formats. This is the best technique for compressing PST file attachments without the need to install additional software, such as Microsoft Outlook. Users only need to finish the program’s complete compression procedure. Every version of Microsoft Outlook, including 2003, 2007, 2010, 2013, 2016, and 2021, is compatible with this program. Users can test out the application’s functionality with the trial version before committing to a complete purchase. This solution keeps Outlook effective and organized, regardless of whether you operate as an IT administrator, at home, or in a company.