If you have created different snapshots of your Excel project plan at different points in time, OnePager Express stores these snapshots as different versions of your project and keeps them in time-order. If you need to look back in time at how your project looked a month ago, or want to see the original version of your project schedule from two years back, you can use OnePager Express powerful snapshot feature to look at prior versions of your Gantt chart.
Once your OnePager chart has accumulated more than one snapshot, you can use conditional formatting to determine when tasks' dates have slipped, and automatically highlight those tasks so that it's easy to see where changes have taken place in your project.