Could Not Find Installable ISAM

I use XL07 (in the absence of help --> about, I no longer know where to find the version number).

I work with several colleagues who use XL03, and we email spreadsheets back and forth.

I use a fair number of queries that reference tables in other excel workbooks.

Whenever I email a certain workbook to any of my 03 colleagues, and they refresh the query and send it back to me, the following happens:

1. When I try to edit or refresh the query, I get an error message that reads "ODBC Excel Driver Login Failed" in the title and "Could not find installable ISAM" in the message.

2. When I click OK, I get a "select database" window. I cancel out of that.

3. I go back into data --> refresh all --> connection properties --> definition and look at the connection string. Part of that string reads ";DriverId=281;FIL=MS Access"

4. I delete that part of the connection string, hit ok, and the query works fine (though making this change causes the query to refresh, something I'd occasionally like to avoid).

5. I make whatever other changes I need to make, email the workbook back to my colleagues, they make changes, send it back to me, and the exact same problem occurs.