DevConverter converts your archives online. Amongst many others, we support ZIP, RAR, TAR.GZ and 7Z. No need to download any software like WinRAR or 7ZIP.
LZO is a data compressor library file of Lempel–Ziv–Oberhum. It uses Deflate algorithm to compress data. It works very similar to GZIP files. Both overlapping compression and in-place decompression are supported by this file format. It gives a balancing compression ratio and speed while compressing the data.