I'm using ArcGIS 10.1 SP1 (just recently upgraded from 10.0) and it seems I can't perform hardly any geoprocessing with excel tables. I can preview them in ArcCatalog just fine. When I try and use them in a geoprocessing tool like copy rows, table to table, table to geodatabase, table to dbase, or virtually any other tool I get an error 000732. The results say the table "does not exist or is not supported". The help in the error link says table does not exist or ArcGIS is not able to see it. This makes me wonder if something is wrong with my install or if there is a bug. I'm not in a position where I can easily log a bug or contact tech support so I am posting this on the forums. Anyone else had these problems?