The MS Outlook Help OST File Splitter Tool is a safe and easy way to split a large Outlook OST file into smaller ones. Users can split the file by size, date, sender’s name, or folder. It also allows you to break an OST file with emails, contacts, and tasks into multiple smaller files, helping prevent data corruption.

You can easily reduce the size of your MS Outlook OST file using the OST Splitter Tool. Just follow these steps:

1. Download and install the OST File Splitter software.
2. Click "Add files/Folder" to add your Outlook OST file, then click "Next."
3. Select the folders from the list and choose the "Split OST by size" option.
4. Enter the size and choose MB/GB from the drop-down menu.
5. Choose other settings and select the location to save the split OST files.
6. Click the "Split" button to start reducing the large OST file.

To know more: https://www.msoutlookhelp.com/ost-splitter/