Is there a fomula or a macro or something, within excel, that will allow it to open up and print another excel file?

What Im saying is, for example:
I am making sprockets. I print out an order sheet for 100 sprockets. I have a spreadsheet open stating 100 sprockets. Each time 1 sprocket is no good, I am going to make a notation on that spreadsheet (with a -1). Once that # gets BELOW 95, I want it to print out a work order. I already have a file called "sprockets.xls"...so basically what I want it to do, is open and print out that file "sprockets.xls" when it gets below that 95. On the same workorder I might have 100 flanges, when it gets below 95, I want it to open up a file called "flanges.xls" Is there any way to do this?