You're not the only one who's had problems accessing Outlook OST files. Since OST files can't be opened without Outlook or an Exchange connection, a common request is to simply convert the OST to HTML so that it can be quickly and easily opened in a web browser. Then, you can open your emails in Chrome, Firefox, or any browser, no Outlook needed. In this blog, we'll discuss everything there is to know about converting OST to HTML, with both manual and professional solutions. Download Now