FAQs‎ > ‎

2 - Files

What kind of files can Cartool read? 

See the Reference Guide at the  Files handled  section.


What kind of files can Cartool write? 

See the Reference Guide at the  Files handled  section, and especially for EEG files., and watch for the last column of the tables entitled "Creating".

Be aware that when writing a file, specifying an erroneous file extension (say .bdf instead of .edf) will of course not solve the case! You just add more problems on your machine with extension not matching content!


What are these strange file formats of Cartool, how can I read them on my own?

Cartool has defined a few file formats, keeping in mind both simplicity and functionality.

See the  Files formats  page in the Reference Guide to have a full description of these formats.

Note however that file formats not defined by Cartool will not be described, though Cartool can read them!


How can I open a plain text EEG file?

The simplest format for this is the .ep. If, as most of the time, the data are multiplexed, simply setting the extension of your files with .ep will do the trick!


How do I convert between files format?

Use Export Tracks from in the menu Tools, specify the main parameters (like time interval), and choose the output file format.

This tool can work either in Batch, or simply applies to the current EEG when called.

You can also apply a few usual processings, while converting, f.ex. applying some filters. In this case, the more filters you request, the bigger the file(s), the slower the operation.


How can I read the Geodesics NetStation native files?

As they come out a Mac, these files won't have any extension. All you have to do is therefore adding the extension (or modify it) .nsr (NetStation Recording), and then Cartool will magically open them.

Note that we are talking about the real raw files from the recording machine, not the converted ones (usually .raw), which Cartool can also read.

How do I rescale some previously computed ERPs?

In the Export Tracks utility, you can specify a scaling factor. Simply batch-process your files, and you're done!


How do I create an electrode coordinates file? 

This is answered here.