title: How to install multiple packages in conda from a file without creating a new environment?
body: <p>I took these from yml file of packages that my current environment is missing.  How do I just install these within my current environment? </p>
  
  <pre><code>channels:
    - defaults
  dependencies:
    - appdirs=1.4.3=py36h28b3542_0
    - asn1crypto=0.24.0=py36_0
    - attrs=18.2.0=py36h28b3542_0
    - blas=1.0=mkl
    - cffi=1.11.5=py36h6174b99_1
    - constantly=15.1.0=py36h28b3542_0
    - cryptography=2.3.1=py36hdbc3d79_0
    - freetype=2.9.1=hb4e5f40_0
    - html5lib=1.0.1=py36_0
    - idna=2.7=py36_0
    - incremental=17.5.0=py36_0
    - intel-openmp=2019.0=118
    - libgfortran=3.0.1=h93005f0_2
    - libxml2=2.9.4=0
    - libxslt=1.1.29=hc208041_6
    - lxml=4.1.1=py36h6c891f4_0
    - mkl=2019.0=118
    - mkl_fft=1.0.6=py36hb8a8100_0
    - mkl_random=1.0.1=py36h5d10147_1
    - numpy=1.15.3=py36h6a91979_0
    - numpy-base=1.15.3=py36h8a80b8c_0
    - pyasn1=0.4.4=py36h28b3542_0
    - pyasn1-modules=0.2.2=py36_0
    - pycparser=2.19=py36_0
    - pyopenssl=18.0.0=py36_0
    - service_identity=17.0.0=py36h28b3542_0
    - twisted=17.5.0=py36_0
    - zope=1.0=py36_1
    - zope.interface=4.5.0=py36h1de35cc_0
    - pip:
      - absl-py==0.2.2
      - ete3==3.1.1
      - grpcio==1.12.1
  </code></pre>