Hi Renatas,
In the First Step (second screenshot from Gregory's post) select the option Batch recording. After once you give a name to the project, it will ask for the Tcode and you can give ft._create. Then you just do a normal transaction, by giving entering all the relevant fields you need.
Once you save, the recording will have all the fields and yo can create the excel for upload from the fields(found in object overview option).
Regards,
Nikhil