This is a very generic question. If you want a specific answer it would help if you could show us what your ASCII file looks like. Or do you mean an ASCII grid file?

Hello,

this is the file I want to convert. It's an numeric terrain model each 1m. So I need to have an csv file with coordinates and elevation like this: 893798.5, 6256850.5, 314Thank you!

You could use a RasterCellCoercer to generate a point for every pixel and assign the band value as to an attribute automatically, then a CoordinateExtractor to get the x and y values too and write them out to a CSV file.

Alternatively, you may even get away with writing directly to a Point Cloud XYZ file.

It works!

Thank you very much