Slicing a 3D Image File For Photos.

slice it. use the g-code viewer and set the layer range where you want it

that looks more like S3D, but something similar is available in Repetier Host - but it will not be on a white background.

However.. either will give you top to bottom slices, not front to back - you can re-orient the piece to get front to back, but that would be the only way i know in a slicing program.

after slicing in RH, in the Preview tab, select "Show Single Layer" then step the slider as needed to view the layer you want - then it is just a simple screen capture for the "picture"

Alternatively, you can select "Show Layer Range" and view specific layers in a given range using the sliders to set the range

not terribly difficult, really..
Slice it.
divide the number of layers by how many slices you want - say 350 / 10 = 35
set the preview to individual layers and then set the slider to layer 1 to start with.. then add 35 to that, so layer 36 would be next, then add 35 again to get the next slice at 71, and so on

if you want to use the layer range thing.. you would set one slider to 1, 2nd slider to 35 - that will show all layers between 1 & 35.
for the next "image" set the 1st slider to 36, and 2nd to 70, and it will show all layers between 36 & 70, and so on
(i may have that backwards... 1st slider may be the upper limit, 2nd the lower - would have to test)

but again, this will not be front to back, unless you orient the piece that way. and it will not be on a white background.