We need an easy way to transform . OST in . PST ? What is the easiest way to do this? I just need to work with e-mail now, and I don't have such an opportunity…

I can offer you a great solution to your problem, take advantage of pst recovery online ---- https://outlook.recoverytoolbox.com/online/

Bitacube OST to PST Converter is another proficient application which provides few simple steps to convert OST to PST.
1) Add OST file
2) Preview OST file
3) Select destination (PST, Live Exchange, Office 365, EML, MSG, HTML)
4) Convert OST to PST

More information http://www.bitacube.com/ost-to-pst-converter.html

OST and PST are both the file formats of Outlook Mailbox data. But sometimes we need to change the OST file in the PST file format, like:-
1:-Our OST file become corrupted that we can not use it when till we do not convert it in PST
2:-If we went to open OST file on other systems.
3:-The connection to the exchange server with Outlook is broke.

I want to suggest to one of the most reliable solutions which easily migrate OST file to Outlook pst format and that software is- Sysbud OST to PST Converter. The utility easily exports large size of OST file into PST and keep maintain the meta properties, folder structure & mail stuff. The software support all Outlook( 2019,2016,2013,2010,2007,2003,etc) and Windows OS(Win XP, 7, 8, etc) version.

OST to PST Conversion is the perfect solution for converting unlimited OST files to PST file without any trouble. You can use this application to get error-free results. Various advance options of the tool make your migration simple and smooth. The tool works on all Windows versions. You can try this utility.
More info visit here;- https://www.toolsbaer.com/ost-to-pst-conversion/

There are two possible ways to transfer the OST to PST one is the Manual or another is third-party software. But if we talk about the third-party solution then I also recommend the A2Z Migrations for OST to PST tool. It is the best option to convert the bulk OST file data to Outlook PST or other multiple formats at once. While you choose this OST to PST recovery tool you don’t have to pay the extra charges like $49, $149, or $299, you just buy the full version license at only $10.14 per mailbox.
For getting complete information visit: http://www.a2zmigrations.com/ost-to-pst-converter/

Get the best OST to PST Converter from MailsDaddy to repair the corrupted OST files data to healthy PST. You can export your OST data to EML, MSG, RTF, HTML, MBOX, MSG, MHTML, Live Exchange Server, and Office 365 format. You can try our Demo version for evaluating the function of the software. You can get complete information about the software visit: http://wiki.appvisor.org/MailsDaddy_OST_to_PST_Converter

Try an application MailsSoftware OST to PST Converter to convert OST mailbox data to PST. It repairs the damaged and corrupted OST data by fixing the bugs in a single click. It provides an option for the user to divide the larger OST files to smaller PSTs with the same text-formatting structure and without losing any data attachments. Please visit the site to get more info: http://www.loopdesk.com/article/35033/convert-ost-data-to-outlook-pst-format

To know how to convert OST to PST, one can make use of a trial version of OST to PST Converter tool. Using a trial version, you will be able to know step by step process of OST to PST conversion. Once you get to agree with a free trial version, then I would suggest you to go with a full version of this tool. With the help of the full version, one can import accessible and inaccessible OST to PST, EML, MSG, Office 365, and Live Exchange Server.

Get More Info: http://www.edbmailrecovery.com/

I would like to recommend OST to PST Converter Free to transfer exported OST mailboxes to Outlook format. It is the latest tool comparing to the above software because it doesn’t necessitate the extraction of OST files so you can straight convert OST exported OST files to Outlook PST format. To know more info: https://www.softknoll.com/ost-to-pst-converter/