I want to export contacts from Outlook 2007 to a format which can be opened in plain-text for modifying using a program. When exported to .pst format and re-imported, the contacts seem to retain some hidden properties used by an Outlook addin like ID, etc. whereas when exported to csv, I do not see these fields anywhere in the csv file.
Is there any difference in what gets stored when exported to .pst vs. csv? How do I get these hidden properties on the contacts to be exported to csv?