Import not finding fields

I have created a content type 'bokningar' and have an excel sheet 'bokningar'. There are a number of fields which match exactly the content type and the column headers (excel headers with sample content attached and list of fields in content type)

When i import the excel file i get the following error message: The field "Svensson" is not in the "bokningar" content type.
Thus it seems that row 1 is not being recognised.

Thoughts?