To export a file from P6 in an .xlsx format:
Open the P6 file that will be exported
Select File
Click Export
Select Spreadsheet - (XLSX) from the Export Format pop up window
Click Next
In the Export Type pop window, check off Activities and Activity Relationships
Click Next
Select a template from the Template list
Click Modify if using an existing template
Note: if users do not want to use an existing template, create a new template by selecting Add
Click Activity Codes - Global
Select the Columns that need to be import. The following fields must be selected: Activity ID, Activity Status, WBS Code, Actual Finish, Actual Start, Planned Finish, Planned Start, Actual Duration, Original Duration, Activity Name
Click OK
View the summary and click Finish.
Click Close.