Outlook files pst and ost

Nicola_Piano · December 16, 2022, 11:27:44 AM

Hi Charles,
I wanted to ask if in O2 there is the possibility to read/manage outlook pst and ost files.
Thank you

Charles Pegge · December 16, 2022, 12:59:54 PM

Hi Nicola,

I am not familiar with these files. It looks like a major project:

What Is a PST File?
How to open, edit, and convert PST files
https://www.lifewire.com/pst-file-4140356
https://en.wikipedia.org/wiki/Personal_Storage_Table
https://en.wikipedia.org/wiki/B-tree

Nicola_Piano · December 16, 2022, 03:22:38 PM

Yes, they are files used for mail management by Microsoft Outlook.
Since December 1st I no longer work in the company where I worked for 35 years.
There I used outlook. Over time I have kept various emails that I can not handle now. :-(

I saw on the internet and free programs I did not find ...

In the forum I found this: http://www.jose.it-berater.org/smfforum/index.php?topic=3685.msg12007#msg12007

Charles Pegge · December 16, 2022, 06:37:06 PM

Have you seen this one (with a free version):

https://www.cigatisolutions.com/outlook-pst-file-viewer/

Nicola_Piano · December 17, 2022, 06:42:03 PM

Hi Charles.
Thank you for the link. I tried the program, the free version can read the archive but it won't let you do anything else. For example it doesn't allow you to open attachments. I found others similar to the one you mentioned:
Kernel Outlook PST Viewer.exe
SysTools Outlook PST Viewer.exe
RecoveryToolboxForOutlook.64.exe
pstwalker.exe
pst2eml.exe

Everyone has the same limitations. The last one, which translates pst emails to eml, only does the first 5.
Cheers

Charles Pegge · December 18, 2022, 09:47:14 AM

Hi Nicola,

If there was a way of decoding the pst files B-Tree, we would solve it. Apparently, the data is held in blocks of 512 byte
u
Unicode.

Nicola_Piano · December 18, 2022, 09:56:07 AM

Hi Charles.

I found this https://www.geeksforgeeks.org/introduction-of-b-tree-2/

Charles Pegge · December 19, 2022, 05:51:32 AM

I've found some docs on the PST file specification. It looks rather daunting. The Microsoft specification is nearly 200 pages long!

PST FILE FORMAT
https://docs.fileformat.com/email/pst/
https://github.com/libyal/libpff/blob/main/documentation/Personal%20Folder%20File%20(PFF)%20format.asciidoc
https://learn.microsoft.com/en-us/openspecs/office_file_formats/ms-pst/141923d5-15ab-4ef1-a524-6dce75aae546
*
Outlook Personal Folders (.pst) File Format
https://interoperability.blob.core.windows.net/files/MS-PST/%5bMS-PST%5d.pdf

Nicola_Piano · December 23, 2022, 05:42:56 PM

Charles,
can these files be useful?