The interfaces you mention do not allow the retrieval of the function history as @hospital.quentin wishes.
On the other hand, I would like to point out that there are many functions in SolidWorks that will allow you to modify an imported body even without having its build history.
In SW premium there is no Catia interafce it is a paid option!
On the other hand, if your company has purchased on interface, yes, you can continue to work on the blade but not modify the construction steps carried out under Catia.
But as I wrote above, there are still a lot of functions in SolidWorks that allow you to modify surface bodies (modify face, move face, restore surface, ....)
I confirm for the CATIA import under SOLIDWORKS either you need a CATIA Translator license that is fully integrated with SOLIDWORKS, or you need a Datakit type gateway
@coyote, currently yes the catia translator is planned for V5, after nothing says that this module will not evolve in future versions to be able to open V6 for example
Different functions are not present on SLDW, or I haven't discovered them yet, which is also likely, such as the interpolation function.
The challenge is to make a blade for a hydroelectric turbine, once modeled, the CAD file will be used to create a 3D prototyping impression and then make the blade in the foundry.
@hospital.quetin: If your company is an Axemble customer and has acquired the MyCadServicies service, there are tools that allow you to create coubres and therefore surfaces from point files (xls, txt or other).