Cutting up large Illustrator CS file (with gradients) into smaller multiple files

2018-10-22 21:02:09

I have a 20+ foot wide x 3foot tall illustrator file that has gradients running horizontally through the image. It will be output onto sheet vinyl. This image spans 7 windows on a storefront. What tool or process can I use to cut this file vertically into smaller individual files, so it can be handled and installed more easily?