<s>[INST] Let's say I've got an Excel spreadsheet with the following columns:
- Date (in mm/dd/yyyy format)
- Total Reached
- Total Launched
- Total Delivered

I want to display data for each day of the year to see trends. My data isn't continuous (sometimes there's a day or two missing in between), so I'll need to fill in missing dates.

How do you suggest I proceed?[/INST]