You use uploaded data source files such as .xlsx to create visualizations in projects.
Note:
You can also use the Data Sources page to upload data files. For more information see Managing Data Sources.Note:
A column that is unavailable and marked with a red information symbol is invalid and will be excluded. Typically, this happens because the column name is a duplicate or it contains illegal characters (leading or trailing spaces, or special characters). You can hover over the symbol to see the reason why the column is invalid.