It might be possible that Navicat settings can be exported as CSV file. Other than that, there is no way how those two file types could be converted between each other.
Convert Navicat for MySQL Import Wizard profile file to Comma Separated Value.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert npi to csv on Windows
Fully-featured version of Navicat for Windows
Convert from npi file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.