HI, I have tried to convert your Excel to sheets.
For your information, some Excel features can't be displayed in Google Sheets and will be dropped if you make changes.
Here are the changes in Sheets :
For DASHBOARD, the table for total sales can be converted and the rest cannot.
For WORKFILE, the above gross profit is missing and the below one is okay.
For DATA, it's perfect!. The only thing is the font color.
You can chat to me, I will send you the screenshot of it from my laptop first before milestone.
So you can further decide.
-Thivya