[Genome] FASTA conversion

[rbelc001@student.ucr.edu]

I'm currently using ClustalX to align FASTA formated sequences and can use the program to save the alignments as a FASTA file, but the end result file is *.fasta. Unfortunately, many of the software I'm using to generate probes based on the alignments require formats in the form of *.fsa. What program can I use to generate a single *.fsa file containing all of my aligned sequences in it?
Rich