Off topic:Converting Blast CSV or TSV output to regular pairwise output

Question

[novice]

How can I convert one format of Blast output to another? I wrote a couple of scripts to manipulate and filter the Blast TSV output according to what I need. Now I'd like to turn this output into pairwise hits (Blast's default output). Blast includes a tool called blast_formatter takes an archive format and converts into any format. Is there a similar tool out there that allows me to specify the input format?