It appears there's some issues with the format of the CSV. For example, the field names are separated by semicolons instead of commas. When I open it up in Excel, they all appear in one cell. Also, it looks like most values are separated by semicolons instead of commas.
Many thanks for your answer!
Yes you're right - seems to be some problem with CSV file.
But I have tried another way to work around and import the Excel file, but same Error.
1. Have created a 'blank' Line Layer, and then the Fields:
automaticaly are created.
2. Open this new empty Featured Layer and chooses Update data - Add data to layer
3. Choose 'Line_layer_test.xlsx* (see attached) and press 'Transfer and continue'
4. Get the same Error message 'Error no compatible layer found in transfered file'
Cant understand this. I'm very grateful for any help!