<p>I have two spreadsheets... when one gets modified in a certain way I want to have a macro run that modifies the second in an appropriate manner.  I've already isolated the event I need to act on (the modification of any cell in a particular column), I just can't seem to find any concrete information on accessing and modifying another spreadsheet (this spreadsheet is located on a different LAN share also... the user has access to both, though).</p>

<p>Any help would be great.  References on how to do this or something similar are just as good as concrete code samples.</p>

In Excel, you would likely just write code to open the other worksheet, modify it and then save the data.
See
this tutorial
for more info.
I'll have to edit my VBA later, so pretend this is pseudocode, but it should look something like:
```
```
Dim xl: Set xl = CreateObject("Excel.Application")
xl.Open "\\the\share\file.xls"

Dim ws: Set ws = xl.Worksheets(1)
ws.Cells(0,1).Value = "New Value"
ws.Save

xl.Quit constSilent
```
```