Unique Invoice Number

Greetings,
I'm new to VBA with Excel. I was wondering how I can have a unique Invoice Number  printed on an expense report I have created. It is in a protected Excel 97 template. There will multiple users and I need the invoice number counter to increment by one each time the template is opened. I'm sure some one has run into this before. If the code exists please let me know where to find it. I'm very familiar with VB just not the Excel API.

Thanks for your help in advance,
Brad
bhummelAsked:
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AcmaticsCommented:
You could create a shared database (.mdb) with an AutoIncrement field in your Invoice record. As you add new Invoice records a new number will be generated.  
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bhummelAuthor Commented:
I was trying to avoid that. I wanted to keep it all with in Excel. But, it's looking more and more like that is the only way to go. Question how do you name a cell in Excel? You can Book Mark in Word is there similiar functionality in Excel.

Thanks,
Brad
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AcmaticsCommented:
This is a new question of course, but you should have no problem playing "Name that Range".

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bhummelAuthor Commented:
Did that. I used MSQuery and and an .mdb as you suggested. For some reason Excel keeps putting a header above the AutoNumber from the .mdb. Can I get rid of that column name? Also, the spreadsheet will be protected, I have unlocked the cell and it gives me an error saying the sheet is locked. How Can I get around that?

Thanks,
Brad
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AcmaticsCommented:
Again another set of questions, but did you set protection off, did you try using overriding your column heading to "", did you consider doling out a few points?;)
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bhummelAuthor Commented:
Thanks for your help. Here are your points.
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