Calculating Workdays... And Previous Threads

Hello.

I've been trying very hard to get through the various instructions, code, modules, etc, on calculating workdays. I am having no luck in getting this done. As one who can write an Access database only to the point of a little VBA, using mostly queries and formulae to get by, I have difficulty with posted code from time to time.

For example, in a previous thread (actually, in several previous threads), code was posted with the instruction (essentially), "Here. Use this." To which someone replies, "Thanks, worked a charm." Or the like. As one who struggles and has limited responsibilities in this area (and little time to learn while on the job), posted code can be a blessing... but "Here. Use this." can be its attached curse. "HOW do I use it?" is the next question. Is it a module? Do I put it as code on the On Open event for a form? Is it an expression I build into a query? Sometimes, seeing the code is only the first step... and for one like me, can lead to a lot of trouble.

Also, many have been kind enough to post databases, which show the end result of much work. This is also greatly appreciated, believe me. But, again, once I start looking to HOW it was built... the investigation sometimes leads nowhere. Where do I look for code? Did I miss something? Why doesn't mine work like that?

So, for the question I have now, I have searched this and other forums. I have copied and pasted code that I thought should work. I have copied code into a module and tried to call up that module in a query. I have followed instructions as well as I could... but you can guess where this is headed. What I have is, in the simplest form, a table called Employees with the fields Name, StartDate and EndDate. I need to know how many workdays there are in the date range of StartDate to EndDate, including the dates in those fields.

If you have answered this question before, I apologize for not being able to figure this out. Any help is greatly appreciated.