I have documented the RWZ file format (PidTagRulesStreamW) - this could be a good addition to MFCMAPI

[hughbe]

In https://social.msdn.microsoft.com/Forums/office/en-US/d1cbdc2e-b63d-4fe6-b062-d6ceb16b2abd/whats-the-binary-data-format-of-clientside-rules-ipmruleorganizer-property-0x68020102?forum=outlookdev:

I've reverse engineered the file format in a Swift project, found at https://github.com/hughbe/OutlookRulesReader.

I've also written a specification here: https://github.com/hughbe/OutlookRulesReader/blob/master/docs/RWZ%20Format.pdf

Would you be interested in an implementation? I would be happy to help implement this as I no doubt would learn a lot more about the file format!