How to Merge Multiple Outlook PST files into single one?

With the extended usage of Microsoft Outlook, the number of PST file may increase enormously. Lead to unmanageability problem and in such situation of mishandling, may result in Outlook files corruption or inaccessibility of PST file. Therefore, this calls for the merging of PST file into a common file to handle them smoothly.

To merge multiple PST files into a single PST file manually with Outlook:
First, open the PST files within your Outlook. In every version of Outlook, you are allowed to open the additional PST files. For Outlook 2007, you need to navigate through File menu > Open > Outlook Data File. After that browse to the PST file location and open the file in the system, select it and click OK. For merging your files you must repeat this for multiple PST files and move the Outlook content between PST files by either dragging and dropping them or by highlighting the content, right-clicking it, and selecting Move To from the context menu. Then navigate to the destination folder, and click OK. By this process, the content will be moved to the destination folder and removed from the source one. If your PST is large, say more than 1GB of data, then I recommend segmenting the files into two or more smaller parts and then move them in parts.

This task may get tedious if you have plenty of PSTs and a lot of content. Then the third-party applications can help you complete your task in an easy and secure way.
PST Merge Software can also provide you with the useful feature that could help you maintain you PSTs in Outlook.