Code to insert text from filename.txt into product description block.

[SparkXC]

Hello everyone,

So this is newbie question but I want to be sure I get it right!!

I have a number of products that all use the same detailed product description.  The product is a perforated vinyl window wrap so the same details apply to all the products but the printed images are what makes the individual part numbers.

I would like to call the text for this info directly from the product setup page and have it display on the product page as if I had typed it in.  The point being is that if I have a base vinyl material change that effects all the products, I can edit one file and update all my detailed product listing rather than run thru a hundred products.  Hopefully that makes sense.

Any thoughts how insert that text file at the code option of the product setup page?

Thanks in advance!