Executing a tool with an Excel spreadsheet (.xlsx) as input to the tool while using background processing fails.
Some of the errors encountered could be:
"Error 000622: Failed to execute (tool). Parameters are not valid."
"Error 000732: Input Rows: Dataset (path to data) does not exist or is not supported."
Background processing has dependencies on an updated version of Microsoft Office or the Access database engine pack. These are required to use .xslx files with background processing.