BitScope DDR type field enumeration anyone?

The BitScope DSO software supports recording data to csv files for later analysis, which should be quite useful.  Unfortunately, interpreting the data is not so easy...

One of the columns is the "type" field, which the DSA Data Recorder manual describes as:

Type: the capture data type (analog, logic, decimated, filtered etc)

However if you look at a sample file, it is obviously an enumerated type.

I haven't been able to find any more details despite numerous google searches, and a request to BitScope support on 6 July hasn't been answered.

Has anyone been able to figure this out???