Overwritten Shared File

You work part-time in a small office. Yesterday a colleague saved an old version of the team's shared budget spreadsheet over the current one, and three hours of your updates have disappeared. The report is due on Friday. Speak to your colleague: explain what happened without blaming them and suggest how to recover the work and avoid a repeat.

Hi, have you got a moment? I think there's been a mix-up with the budget spreadsheet. When I opened it this morning, the figures I entered yesterday afternoon were gone, and it looks like an older copy was saved over the current one. It's easily done, so no worries, but the report's due Friday. Could we check the version history together to restore my changes? Going forward, maybe we could both work in the online version instead of downloading copies, so edits sync automatically. Does that sound okay?