Handling large csv files with [coll] / hints or alternatives

Hello everyone!

I am working on a project and I need to handle very very large csv files.

A row of data would look like this:

1 , 0400.wav -0.13030312276463407 -0.8619091109806594 -0.09349469537032416 -0.27364718172646590;

and the number of entries could be tens of millions.

I am using the [coll] object to handle these csv. It works fine until the number of elements goes over a certain quantity, above 5 million rows it just won't read the csv.

I am not sure if the limit is in the csv file dimension or the number of listed elements.

Is there anybody who ever encountered such a necessity?

Or do you know any alternatives to [coll] for such an application?

Thanks a lot