https://community.esri.com/t5/geodatabase-questions/fdo-error-2147221231-in-arcmap/m-p/1102802#M7370 <DIV class="">Hi</DIV><DIV class="">I get this error when I add the Excel file from the "Add Data" method":</DIV><DIV class="">Failed to connect to&nbsp; database.</DIV><DIV class="">FDO error: -2147221231</DIV><DIV class="">Please guide me.</DIV><DIV class="">&nbsp;Thanks</DIV> Tue, 28 Sep 2021 20:47:05 GMT shnokarimi 2021-09-28T20:47:05Z https://community.esri.com/t5/geodatabase-questions/fdo-error-2147221231-in-arcmap/m-p/1102802#M7370 <DIV class="">Hi</DIV><DIV class="">I get this error when I add the Excel file from the "Add Data" method":</DIV><DIV class="">Failed to connect to&nbsp; database.</DIV><DIV class="">FDO error: -2147221231</DIV><DIV class="">Please guide me.</DIV><DIV class="">&nbsp;Thanks</DIV> Tue, 28 Sep 2021 20:47:05 GMT https://community.esri.com/t5/geodatabase-questions/fdo-error-2147221231-in-arcmap/m-p/1102802#M7370 shnokarimi 2021-09-28T20:47:05Z https://community.esri.com/t5/geodatabase-questions/fdo-error-2147221231-in-arcmap/m-p/1102848#M7371 <P>That number is tied to old versions of Windows operating system.... up date it</P><P>in the interim use</P><P><A href="https://desktop.arcgis.com/en/arcmap/latest/tools/conversion-toolbox/excel-to-table.htm" target="_blank">Excel To Table (Conversion)—ArcMap | Documentation (arcgis.com)</A></P> Tue, 28 Sep 2021 22:47:54 GMT https://community.esri.com/t5/geodatabase-questions/fdo-error-2147221231-in-arcmap/m-p/1102848#M7371 DanPatterson 2021-09-28T22:47:54Z https://community.esri.com/t5/geodatabase-questions/fdo-error-2147221231-in-arcmap/m-p/1102849#M7372 <P>Also see info here</P><P>Error: Failed to connect to database. An underlying database error occurred. Class not registered</P><P><A href="https://support.esri.com/en/technical-article/000013670" target="_blank">https://support.esri.com/en/technical-article/000013670</A></P><P>&nbsp;</P> Tue, 28 Sep 2021 22:50:01 GMT https://community.esri.com/t5/geodatabase-questions/fdo-error-2147221231-in-arcmap/m-p/1102849#M7372 curtvprice 2021-09-28T22:50:01Z