How to Fix the 'External table is not in the expected format' Error When Reading xlsx Files in Excel?

Solve the error of Excel's "external form format" error

Question:

When using the connection string (including Microsoft.Jet.OLEDB.4.0 and Extended Properties = Excel 8.0), read the Excel (XLSX) file, if the file is not opened in Excel, the "external format does not match" may appear. mistake.

Solution:

In order to directly access the XLSX file without having to open it in Excel, please modify the connection string as follows:

"Microsoft.jet.OLEDB.4.0" was replaced with "microsoft.ace.OLEDB.12.0". This updated driver is compatible with Excel 2007 files.

Update "Extended Properties = Excel 8.0" to "Extended Properties = Excel 12.0". This adjustment is consistent with the Excel version used.

Specter string:

Using this modified connection strings, you should be able to read the excel file without opening the file in the Excel in advance.

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