CCL: how to convert multiple molecules in sd file format to mol2 format



respected sir,
i am student want to use the toxicity dataset which are present in chemoinformatics.org site
 
but most of molecules are in smiles format or sdf format how can i use these datasets for QSAR OR QSTR.
 
how to convert them into sybel mol2 format or mol format.
 
can open babel do this
thanks in advance for spending u r  valuable time in replaying this
 
by
madhu