Issue - updating .txt file as a dbs source

Hi gyus, I have following problem (CR 8.5)
for a subreport within a main report, I use a .txt file as a db source (which I connect to via ODBC).
It looks like for example:
Year;Col1;Col2
2007;20;30
2008;25;35
I need to add one more column, so it looked like:
Year;Col1;Col2;Col3
2007;20;30;40
2008;25;35;45
So I edit the txt file, open the report and then I click "Verify Database" in the subreport I expect update to happen, so that I can see a new field among database fields in field explorer dialog so later I could put it into my report. Yet nothing happens, it says "Dtabase is up to date" and the change of the txt file is not recognized by CR.
Any ideas/tips/help appreciated.
Thank you

Hi Martin,
Please try to set the datasource location.
For ODBC Connections
1. On the 'Database' menu, click 'Set Datasource Location'.
2. In the 'Current Data Source' section, click the data source to be changed. You must click each individual table in the data source one by one. If the data source is a stored procedure you will not see individual tables.
NOTE
In Crystal Reports 10, XIR1, and XIR2, if you are mapping from a data source such as a stored procedure where the report designer can not determine which fields should be mapped automatically, you will see a 'Mapping' dialog box where you can manually map fields, as in the procedure cited above.
3. In the 'Replace with' section, click the data source you want the report to use.
4. Click 'Update'.
5. Close the 'Set Datasource Location' window.
The report now points to the new location.
Hope this helps you.
Regards
Ankeet

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