SysTools PST Compress Software helps a user to compact PST file of large size in Microsoft Outlook within a short time span. Some of its features are:

Features:

• PST compress tool shrink multiple PST files at once.
• Supports Compaction of data files of both ANSI and UNICODE types
• Provides PST compression by Removing, Extracting and Saving attachments
• Reduces Outlook data file to minimum size without any data modifications
• Displays log report of complete PST compaction.
• Runs on MS Outlook 2016 and all below versions
• Supports all Windows versions

For more info, click here: https://www.systoolsgroup.com/pst-compress.html