Compress large CSV FIle? (500MB)

Question

I have a CSV-File which is 500MB of size. I am searching for a way to compress is to it smallest possible size. I actually received the file back then in a ZIP-Folder which was only about 50MB of total size, therefore i know it must be possible to compress that file this much. I am using 7-Zip and i tried every possible combination already but i only can compress it by about 20 MB, means from 500MB to 480MB. Do you have any advice on that? Thank you very much.

Solution

Thanks to "DrMoishe Pippik". He told me that the problem could be a memory limitation of the device i am using to compress the folder. This was exactly the problem. I compressed the file on another device and now it is compressed to 90MB. By the way, i am using the most current 7-Zip Version on both devices.

Comments

[Admin]

First of all thank you very much. I will try both right now and update this thread. ;)