Type out contents copied from excel to proprietary software

[philipq]

Greetings,

I have to type out the stock# onto a proprietary softwware, simply because the copied contents (from excel) cannot be pasted on it.
So, if I copy the stock# from excel and it is avaiable on the clipboard, how do I make the computer type its contents out, one by one onto the proprietary software's text box?

Thanks in advance for your help.

Best Regards,
Philip