To upload a new estimate, start by going to the Estimate solution and click Upload Estimate.

On the next page, you can create a new milestone to upload this estimate to.

Or, you can keep the current milestone selected if you want to simply update it.

Click Add file here, and choose the updated estimate file you want to upload.

Since you already fixed all the errors when you first uploaded this file, you do not have to redo that work. You only have to address components by either creating new ones or replacing them with existing components.

Once all components errors are addressed, click publish to finalize your estimate upload.

At this stage, you can also address any program changes if you need to.