Sir, I Have read your project description. i have 8 year exp. in opencart. I am confident to handle your projects with good quality. i have exp. to modification of excel port, i can make it cron job for update product regulerly.i have done it 100+ opencart website .i m the top of listing on opencart skill.i have exp. In opencart theme customization, module customization. i can do any type of work in opencart . u can check my profile I have 5.0 star with high repeated rate in the top opencart freelancer profile. Please send me message on chat for more about discuss on project, thanks