I wonder why there are empty columns in the reports. And judging by their number under the terms of the bounty, a daily report is required, not a weekly one.
Probably make daily reports. And empty places will be filled by the end of the week.
I think it's not convenient for checking reports. In spreadsheet there are dates of the beginning and the end of the counting weeks. I fulfilled the conditions of the week - I wrote a weekly report, etc. I don't understand why people edit the post every day.