If you want to compress an older PST file from Outlook 2013,
Shoviv PST Compress Tool is the ideal tool for you. It compresses large PST files efficiently by stripping out useless or redundant information, such as attachments, without affecting email integrity. It supports UNICODE and ANSI PST formats and works smoothly with Outlook 2013 and other versions. With folder-level processing, selective compression, and extracting attachments, users have full control of what is compressed. Space can also be freed without losing retrievable files by storing extracted attachments in a different folder.
