Import and exported File have different sizes though they are identical I have a .ply file which is 6mb in size. It has about 140000 faces. This is an output of a 3d scan. When I import it into blender and export it again as a .ply or a .obj, the file size is increasing to 60mb, even without making a single change (No modifiers, no change in scale, no change in mesh, nothing!). Can someone help me in figuring out why this is happening? Thanks

What is that blender is adding to the imported file to make it 10 times bigger in file size?

Also, i tried decimating the object to a ratio of 0.1 and still the exported file is 9mb, while the original 3D scanned file is just 6mb.
Blender's .ply importer can handle two kinds of .ply file.


ascii  (plain text -human readable, but large file sizes)
binary (data is stored in a compact way, and must be decoded before it becomes human readable)


Blender exports neither .ply or .obj as binary, so expect larger file sizes as exports.