The file I’m currently working with looks like this:
ITEM: TIMESTEP
0
ITEM: NUMBER OF ATOMS
2000
ITEM: BOX BOUNDS pp pp pp
-3.0000000000000000e+01 3.0000000000000000e+01
-3.0000000000000000e+01 3.0000000000000000e+01
-3.0000000000000000e+01 3.0000000000000000e+01
ITEM: ATOMS id type xs ys zs
1 1 0.239375 0.505765 0.143033
2 2 0.254461 0.510929 0.143544
3 2 0.240602 0.489869 0.142478
4 3 0.23796 0.503614 0.142924
5 1 0.595518 0.0928577 0.411568
6 2 0.583006 0.0833093 0.414176
.
.
.
1998 2 0.232469 0.378261 0.657207
1999 2 0.248144 0.373883 0.676491
2000 3 0.235467 0.369355 0.67263
ITEM: TIMESTEP
1
ITEM: NUMBER OF ATOMS
2000
ITEM: BOX BOUNDS pp pp pp
-3.0000000000000000e+01 3.0000000000000000e+01
-3.0000000000000000e+01 3.0000000000000000e+01
-3.0000000000000000e+01 3.0000000000000000e+01
ITEM: ATOMS id type xs ys zs
1 1 0.242619 0.507873 0.136935
2 2 0.253103 0.515054 0.14658
.
.
.
and then repeats itself like that.
Pretty ugly format in my opinion, but it is what it is.
It comes from LAMMPS, a software for molecular dynamics simulations.
Anyhow, I don’t think we need to get into the specifics of my file format here, I just wanted to clarify whether I’m missing something in the CSV package.