I assume you talk about the BrainVision .eeg file format. It comes together with a .vhdr file in the same directory. Using matlab, you can download the eeglab toolbox
http://sccn.ucsd.edu/eeglab/, it comes with a plugin toolbox (bva-io) to handle BrainVision file formats.
Using this toolbox, you can just type:
res=pop_loadbv('yourfile.vhdr');
to load all the information in a matlab structure. In particular, res.data contains the signals in a matrix (channels x samples).
I assume you talk about the BrainVision .eeg file format. It comes together with a .vhdr file in the same directory. Using matlab, you can download the eeglab toolbox
http://sccn.ucsd.edu/eeglab/, it comes with a plugin toolbox (bva-io) to handle BrainVision file formats.
Using this toolbox, you can just type:
res=pop_loadbv('yourfile.vhdr');
to load all the information in a matlab structure. In particular, res.data contains the signals in a matrix (channels x samples).
Just load that .eeg file in Matlab with appropriate file reading process and save that EEG signal variable. The saved file is .mat file with the variable name.