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# nfiles: read/write native files in various formats

read files in various formats write files in J internal formats

    [opt] nread fl      read file
      dat  nappend fl    append file
      dat  nwrite fl     write file

      opt = 11    1-bit boolean
            82    8-bit character
            163  16-bit integer     (read only)
            323  32-bit integer
            645  64-bit floating point

1-bit booleans are assumed of length a multiple of 8, i.e. an integral number of bytes

data types supported are: boolean literal integer floating

Name | Type | Description
nappend | verb | append to file
nread | verb | read file
nwrite | verb | write to file

nappend

    append to file
    left argument is data

nwrite

    write to file
    left argument is data

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