The eSoftTools OST to PST Converter Tool is a useful tool for recovering data safely. The OST Converter Tool converts OST files to pst, mbox, eml, emlx, and HTML file formats without making any changes to the original data and offers a free trial pack so that customers may learn more about the software's features. The size of files that can be converted is unrestricted. The HTML layout and folder structure are preserved.
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Convert OST to PST Manually
Open Outlook and go to the File menu.
Select the Import/Export option.
Choose Export to a file.
Select Outlook Data File (.pst)
Choose whether to export a specific folder or the whole account.
Check the Include subfolders box.
Next, select a destination for the Export, and then click Finish.
Hope this helps, J Wick
There are different tools for converting but this is short information they provide above in a comment, I saw a website that provides only the top alternative tools for you, there you can first read information and then use them, so i suggest you use those tools for best result, for more detail click on related website finder
Using the SysInspire OST to PST Converter Software, anyone may convert an OST file to Office 365, complete with all attachments. It can convert a large number of OST files to Outlook PST format at once without losing data. Calendars, calculations, tasks, diaries, inboxes, and other components of OST files are all changed. PST, EML, MSG, HTML, and other formats can be converted from OST files.
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PassFixer OST to PST Converter software has the great capacity to fix all errors of OST files and this tool can migrate OST file into PST and users will get many more formats such as HTML, MBOX, vCard, Yahoo, Gmail, Zimbra, EML, MSG, Office 365, and so on. It has a user -friendly interface and users can effortlessly operate this tool without installing windows OS and Exchange Server. It can extract the whole archive of OST files and provide email filtering options to convert emails from OST to PST Conversion. Read more from the official website of PassFixer.
Read More:- Convert OST to PST files