Premature timesheet delivery optimization. This slimy dude (third-party) pops in evangelizing cloud Ms Excel for "both our comfort" to submit a fucking timesheet, without any prior context

Cloud's slower, I don't have a local copy of it, and you can mess with the data cells, blurring responsibility for sync mistakes. No way I'm going to do that.

Until now I've just had the template locally, fill it in and send him the Excel file end of month and neither I or anyone that I know of have brought up issues with this process (mind you this was sth. he was responsible for, but he messed up so badly I took it over)