Hi Judy

>Is there a way to get an index file in that state so I can test?

This might work:

Create a table with some fields and create an index tag. This will associate a valid CDX to the new table.

Next, copy another CDX file with different field expression to the new table CDX name. Now the fields referenced in this CDX will be bogus.

Example:

Table1
F1 C 1
F2 C 1
F3 C 1

INDEX ON F1 TAG F1

Copy the file Customer.CDX to Table1.CDX

HTH,

Gary