Project Timesheet is a lightweight time tracking app built natively for Microsoft Teams. Log hours Mon–Fri across personal or shared team projects in a simple weekly grid with live row, day, and week totals as you type. Keep solo work private with personal projects, or roll up a whole team's hours with group projects. When you need the numbers elsewhere, export yours (or your team's) to Excel in one click. Install once, log your first week in minutes.