Compress large CSV FIle? (500MB)

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.

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2 Answers

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.

I have a CSV-File which is 500MB of size. I am searching for a way to compress is to it smallest possible size.

The highest compression can be achieved with lzma2. I suggest using 7 zip on Windows.

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