PowerPivot Excel datasource with period in Column Name

The other day we were doing some work with PowerPivot, we needed to union multiple excel files, without manual intervention or an SSIS integration, to create a single data source. After finding the following post; http://www.contextures.com/PowerPivot-Identical-Excel-Files.html, that task became pretty easy.

One really interesting thing that I learned after trying to select excel columns where a period was present, ie. ‘column.name’, is that you need to replace the ‘.’ with a ‘#’ for the query to work. The following statement

Select [Sheet1$].[Column.Name] from test.xlsx.[Sheet1$] would be replaced with Select [Sheet1$].[Column#Name] from test.xlsx.[Sheet1$]

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