Any audio editing and converting software will be of use. Suggests to try FlexiMusic Wave Editor. Directly can't read WMA file in FlexiMusic Wave Editor, so play and record the Wma file in the software and then using the "Save As" command, convert and save the Wma file as Mp3 format. To save the file as Mp3, need to install a separate command line Mp3 encoder/ decoder. Lame win 32 will be of use.