If you have a bunch of old ANSI PST files and want to upgrade them to Unicode, you don’t need to convert each one separately. With the SysInfo PST Upgrade & Downgrade Tool, you can convert them all at once. Just open the tool, hit Add PST Files, choose all the ANSI PSTs you want, and select Convert ANSI to Unicode. You can clean up your files by removing duplicates or ignoring deleted items. Press Convert, and the tool upgrades every file for you while keeping the original PST files safe. It’s a quick and simple way to modernize your Outlook data.