Playing with async/await, catamphetamine/read-excel-file and chartjs/Chart.js.
A fast Timesheet overview from .xlsx file in the browser where sheets represent months (e.g. Feb 2017), first row the month days and having a general structure like:
| - | 01 | 02 | 03 | 04 | ... |
|---|---|---|---|---|---|
| Project X | 3 | 5 | ... | ||
| Project Y | 5 | 4 | 0.5 | ... |