You should redesign the package so the data is in a separate workbook, and
the code is in an add-in. This allows you to (a) use a single version of the
program with independent sets of data, and (b) update the code without
worrying about any of the data. It is possible to update the code in a
workbook, but it is complicated and requires certain permissions to access
the VB projects.

- Jon
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Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
http://PeltierTech.com
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"geotelwoman" wrote in message
...
I would like to change the VBA programming in a workbook without touching
the
data. Can this be done by changing the vbaProject.com component within the
package?