PST files are secure files which are not created by default but are created on the request of the user in charge. This file is much durable than the offline counterpart of PST and hence is recommended to create as it helps provide backup which is secure and encrypted. In the long run, PST file format is more effective as it is an online file and can be used to sync data back to the online exchange server. When using Outlook for a long time the data tends to pile up and so does the backup files. So handling those files together is a feat to achieve.

When working on a large number of files there are often problems faced with efficiency and speed. This is the problem faced when a large number of PST files are being analyzed and their data recovered. But in those cases, if a good 3rd party software is not used, some data can get lost. To avoid loss of data, it should be made sure you create a copy of all the files before repairing them, in case they are incorrectly treated. One other thing that should be done is the selection of a good PST repair tool that is able to convert in bulk and is effective.