The timestamps look ok, presumably you know what time zone they are in. The values will need to be turned into numbers, presumably 1,04 represents 1.04. If the file cold be produced with dots instead of commas it would help, but it isn't a big problem.
You haven't given us any indication of your experience, if you are a node red beginner then I recommend watching this playlist: Node-RED Essentials. The videos are done by the developers of node-red. They're nice & short and to the point. You will understand a whole lot more in about 1 hour. A small investment for a lot of gain.
Then have a look at the node red docs pages Working with Messages and Writing Functions.
Then if necessary come back and tell us which bit you are having difficulty with.