Most probably the .pst file is damaged. Try running scanpst.exe (installed along with Outlook on your system) on the pst file. It repairs the file and makes it resuable.
Outlook Pst file doesn't opens because of many reasons like corruption of PST file, PST size getting bigger than 2gb.
Try to use recover pst file thanks to application below under all Windows OS, beginning with MS Windows 98
How to open a dxl file?
How to open a dxl file?
how open bfa file
Start the software. Usually there is an open button or a file menu. If there is no open button, go to file. Click open.
Open Alice, the program. From there, open it and open an a2w file.
Quicken for Mac to open the file.
Open this file in Word 2007.
The best way to open a 3GP file is to double click on the file and to let the computer decide what program to use to open it. If your computer cannot open the file, then you will need to download a program that can open this kind of file.
To open a raw file in Photoshop, go to File Open and select the raw file you want to open. Photoshop will automatically open the raw file in the Camera Raw plugin, where you can make adjustments before opening it in Photoshop.
A FPR file is a humanize groove file for Fruityloops. You will need to buy Fruityloops to open this file.
what is a efw file and how do you open one?
How to open a PBO file extension?