How should the main file be for Logo?

Hello, I want to send a logo to GR. Could you send a sample EPS file?

My file format is this way: (Is it correct?)

Thank you for the answer. I read them. But exactly how a file should be? I could not find an guidelines for that.

Image Preview
590 pixel wide JPG preview of your file. JPG can be any height, however recommended height is 700 pixels. If you need more previews for your item, please consider uploading an optional Preview Image Set

Thumbnail
JPEG or PNG 80x80px Thumbnail

etc…