Seismosoft | Earthquake Engineering Solutions

I was wondering how could I match different accerelograph files from Ground Motion Databases to the ones that SeismoSignal can accept as an input. For example: Files such as ASC or SAC , how could they be modified to be read as DAT. ( I shall inform that I've already tried to donwload ITACA file but upon the setting command log on SeismoSignal, there was an error occuring indicating that one value was missing.) Thank you in advance for your help!

Pascal