.SPQ File Extension
SPSS Database Query File
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What is an SPQ file?
File created by SPSS data mining and statistical analysis software; saves a query to a database; specifies the ODBC database type (e.g., MS Access, dBASE, Excel file), the data fields to extract, and transformations that write the data to the desired format.
SPQ files allow SPSS users to save queries so that they can be run repeatedly. This is useful for updating the dataset when the data in the source database changes.
SPSS query files can be run using the File → Open Database → Run Query... dialog. They can be created in the Database Wizard, which you can access from the File → Open Database → New Query... application menu option.