Spreadsheet timesheets don't fail loudly. They fail the Friday someone pastes over last week's tab, the month-end when three people's hours arrive after invoicing, and the day a client disputes a bill and nobody can say who approved the hours behind it. If you run a firm that bills or pays against time, the spreadsheet is usually the last piece of core infrastructure still held together by habit.
What a spreadsheet can't do
- A submission moment. There is no instant where an employee says "this week is done" - so hours stay editable forever, and chasing is permanent.
- An approval record. A manager glancing at a tab is not an audit trail. When payroll or a client asks "who signed off on this?", a cell has no answer.
- Locking. The week you invoiced in March should not be editable in July. In a spreadsheet it always is.
- Time off in the same place. PTO lives in a second spreadsheet, or an email thread, and never quite matches the hours sheet.
The migration, in order
The mistake most firms make is migrating history first. Don't. Old weeks live fine in the spreadsheet; the goal is that next week happens in the new system.
- Recreate your project list. Whatever the columns in your sheet were - clients, jobs, internal buckets - those become projects. Fifteen minutes.
- Invite the team with roles. Who fills timesheets, who approves them, who runs reports. In Temporic that's Employee, Manager, Admin - most tools have an equivalent.
- Run one parallel week. Everyone fills both the sheet and the new system for a single week. You're not testing the software; you're surfacing the local habits ("we always book Friday afternoons to admin") that need a home.
- Cut over on a Monday, and retire the sheet visibly. Lock the old file or move it to an archive folder. If the spreadsheet stays writable, it stays alive.
What "done" looks like
One approved week. Not a configured account - a week where every employee submitted, a manager approved, and the hours are locked. That's the moment the system has replaced the spreadsheet, and it's achievable in the first week. Every feature beyond that loop - budgets, rates, invoicing, exports - compounds from it.
Temporic is built around exactly that loop: grid entry with drag-fill so a week takes under two minutes, submit → approve → lock with an audit trail, and time off in the same system. If you're moving off a spreadsheet, the 30-day trial needs no card - long enough to run the parallel week and three real ones.