USEARCH manual >file formats
file formats
 
See also: output files.
 
Format   Description
Database files   Target sequences plus possible index.
UDB   USEARCH database with sequences and index.
FASTA   Text file containing sequence data.
blast6out   Tabbed text compatible with BLAST -m8 and BLAST+ -outfmt 6.
Labels   Sequence labels, see also size annotations and ‑notrunclabels option.