into one compressed file. Many types of compressed file are accepted, such as GZIP(*.gz), BZIP2(*.bz2), ZIP(*.zip), TAR(*.tar) and RAR(*.rar). Due to disk limitation, up to 100 M disk space can be used for a user's uncompressed sequences in a project. Uploading files are restricted to 20 M at a time. These restrictions will be weakened in the future.