AVE and IAV Files
 
AVE files and IAV files contain information of 
an averaged image.When an AVE file, such as  that on the right, is opened by VEC in  graphic mode, the averaged image will be displayed as a real-space image as below.

On the other hand, without changing the contents of the file on the right, just by renaming it as 'Phthalocynine.iav', VEC will display it in reciprocal space as the following.

The real-space and reciprocal-space images are actually the Fourier transform of each other.
Phthalocynine.ave
PRIVATE     The item must be at the beginning of the file
 CONV       1
 TYPE       0   2
 RECI        0.00    2.67    1.79    0.00    1.00
 FFT3          64     128     256     200       1 
*EOS

CELL DIMension  a         b         c      alpha     beta      gamma
 CELL        19.6200   26.0400    3.7600   90.0000  116.5000   90.0000
*EOS

SYMMETRY
 SGSY     8   1   c 2 m m
 SYOP      1 0 0 0.0000000     0 1 0 0.0000000     0 0 1 0.0000000
 SYOP     -1 0 0 0.0000000     0 1 0 0.0000000     0 0 1 0.0000000
 SYOP      1 0 0 0.0000000     0-1 0 0.0000000     0 0 1 0.0000000
 SYOP     -1 0 0 0.0000000     0-1 0 0.0000000     0 0 1 0.0000000
 SYOP      1 0 0 0.5000000     0 1 0 0.5000000     0 0 1 0.0000000
 SYOP     -1 0 0 0.5000000     0 1 0 0.5000000     0 0 1 0.0000000
 SYOP      1 0 0 0.5000000     0-1 0 0.5000000     0 0 1 0.0000000
 SYOP     -1 0 0 0.5000000     0-1 0 0.5000000     0 0 1 0.0000000
*EOS

CONTENTS
 CONT    Cu2       Cl32      C 64      N 16 
*EOS

CONDITIONS    V(KV)     Cs(mm)    D(A)
 HREM        500.000     1.060   100.000
*EOS

HKL          H    K    L    F(calc)     Phase
 CALC        1    1    0    272.440   180.000     7.003
 CALC        0    2    0     89.502   180.000    19.391
  .                .
  .                .
  .                .

 CALC        7    7    0     85.361     0.000     6.461
*EOS

END