https://www.123articleonline.com/rss/author/236387/ralph-millerArticles written by Ralph Miller from 123ArticleOnline.comen-usCopyright (c) 123ArticleOnline.com All rights reserved. https://www.123articleonline.com/articles/1218945/how-to-split-oversized-outlook-ost-file Split large size of OST file using vMail OST to PST Converter. This software restores all emails, contacts, calendars, tasks, notes, journals, etc from the OST file and export to PST file. Further, you can choose to split the PST file into multiple small sizes PST file. This software gives you the option to choose the size of each PST files for splitting.