Illustrator .svg issue

[rrsupplyco]

I have an issue with a .svg that was created in Corel Draw. I can open the .svg in Corel and its perfect. However when I open the same .svg in Adobe all the holes are filled in. I used the exclude feature in pathfinder and the images looks correct. When I save as .svg and reopen the file all the lines are wobbly and not correct. 

After using the unite toolAfter saving and reopening the same file

[Monika Gause]

SVG is not a work file format and you should better not use it as an exchange file format.

CorelDRAW is able to export AI files, so why not use that?