Changing Imported Mashup or Mashable Data
Once you have imported data from a Presto mashup or mashable information source, you can use this in calculations or other worksheets within your workbook. You can also modify mashup or mashable data, keeping these suggestions in mind:
Changing column labels to make them more meaningful is recommended. Limit your column names to ASCII letters, numbers, periods (.), dashes (-) or underscores (_). Do not use spaces or other symbols.
Deleting rows except for the first row with column labels is okay. The next time you refresh mashup or mashable data, however, the data you deleted returns.
Changing data in individual cells is not recommended, although Excel will not stop you from doing this. The next time you refresh mashup or mashable data, the data you changed is overwritten.
