# Io Reference

Compression / LZO / LZO

|  | The LZO object can be used to compress and uncompress data using the Lempel-Ziv-Oberhumer (LZO) lossless data compression algorithm. Example use;
    compressedData := LZO compress(uncompressedData)
    uncompressedData := LZO uncompress(compressedData)
|  | compress(aSeq) Returns a compressed version of aSeq. uncompress(aSeq) Returns a uncompressed version of aSeq.