The file extension widget would also scan for any driver on your pc that needs an update. Instead of going to the manufacturer of the driver website to check if there is any update, the driver detective would do it for you. You can have a file extension pst.This file extension is very useful for us in many ways.
Many of the embedded videos we see on the web is done using this file extension pst. The reason is that the high quality video can be compressed and loaded into a web page so that the visitors can view them with less bandwidth consumption. Now this format is an open format but still its patents are protected. This popular format is very helpful for internet users who have low speed download connections. They can download this file extension pst file instead of those videos that are in other formats as it will be huge in size.