Project Costs can be exported from the time/equipment grid and the line items (materials, rental, contract) grid.    To export "all" costs associated with a project, the "download project data" button exports the data in a format similar to the FEMA "national template" excel including personnel with fringe rates tab (aka payroll data), rental tab, contract tab, materials tab, cost codes for FEMA data entry, equipment inventory with FEMA cost codes tab, force account labor tab, and force account equipment tab.  Only "valid" time entries are exported in the project data, so it is important to verify that no time entries are "red" or flagged invalid in the time entry grid.