Some polars are formatted as .CSV (Comma Separated Value) files, where the field separator is a comma or semicolon. This format is not supported in NavimetriX, unlike the .POL format where fields are separated by tabs — a format widely used in navigation applications. Therefore, you need to convert your .CSV file to .POL.

With Excel

Open a new Excel sheet and select the menu: File > Import.

Choose “CSV File” and then select your polar file from the Finder.

Check the box Delimiters = “Semicolon”, then insert the data into the existing sheet.

Then save the file in “Text (Tab delimited)” format, which will create a .TXT text file.

Finally, rename the file by replacing the .TXT extension with .POL:

Your polar file is now ready to be imported.