You can use the script ImportSplineCSV in Autodesk Fusion 360 to read-in an outline profile or other spline curve defined by XYZ coordinates of its individual vertices (or just points).
Data in your CSV file must be comma-separated, with "." as decimal point separator, and all 3 coordinates X,Y,Z must be used (Z can be 0).
To load CSV files from localized Excel versions (e.g. German - semicolon delimiters, decimal comma) or 2D (XY) only CSVs, use the globalized script ImportSplineCSVg - see www.cadstudio.cz/download. Unpack its folder to other Fusion scripts - e.g. to:
or rather to
C:\Users\USERNAME\AppData\Roaming\Autodesk\Autodesk Fusion 360\API\Scripts\
and add the .js file to "My Scripts" with "+".
The variant ImportSplineCSVm can import multiple profiles at once - delimited by an empty line in the CSV file.
The variant ImportPointsCSV reads the coordinates as Points, not Splines.