Data from a combiner needs to be treated differently compared to data from a potato harvester. First getting the data from a combiner can be really tricky!
In my limited experience of working with this data I found the ADAPT framework to be most helpful. If you have any problems getting the data from various binary forms to readable csv files please contact me. I can either give you some free advice on how to get the data into the csv format or do the work for you (for a small fee). With the data on csv format you can load the data into QGIS and it may look something like the left picture bellow. This might be all right for you if your combiner is “slim” and not storing data every 0.1 sec. However, the data (behind the picture to the left) is from a Fendt Ideal with a rapeseed of 35″, i.e. the spacing between the “rows” are 10.5 m. The right hand picture is made in Geodatafarm with some interpolation.
To load the data you open the import dialog here.
Then you will get this dialog.
The storing of data takes some time, you can follow the process up to 40% after that it will appear to be stuck there for some time (a few minutes if data is dense and the field is large).