I have a youtube channel. Viewers will click on a link to to subscribe and pay me monthly. In return for the payments I will be sending them excel files monthly. Eg customer A subscribes, in the first month he will file 1. in the second month he will get file 2. if customer B subscribes, then in the first month he will get file 1, in the second month customer B will get file 2. And so on with customer c, d etc. I want to automate all this workflow of sending files monthly to different customers.
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