If you have a copy of Open Plan and you want to review the data that was exported to Microsoft Project Professional or Server, you can add a setting to the Open Plan System Preferences dialog box so that Open Plan creates .csv integration files. The files are saved to the Integration Progress Logs folder that you set up on the System Settings » File Folders tab.
The generated .csv files remain in the folder until you delete them (disabling the setting does not delete accumulated files). You may want to periodically delete them to keep the folder size from becoming too large.
To specify that Open Plan create .csv integration files:
In Open Plan, click 
File » Preferences » Application to
display the Options dialog box.
On the Advanced tab, click Defaults to display the System Preferences Defaults dialog box.
On a blank row in the Category column, enter _KEEP_MSP_OUTPUT_FILES.
In the Default Value column, enter 1.
Click OK to close the System Preferences Defaults dialog box.
Click OK to close the Options dialog box.