 Hi, this is Sarah Thompson. I am the Manager of Marketing and Community at Tech Impact, and I'm going to show you how to collaborate using Microsoft Office 365 Web App. I'm working with my co-worker collaborating in real time right now, and I'll show you how that works. I'm going to go up to the top right-hand side of my screen and select Edit Workbook. I do have two options to edit this Excel workbook, and in order to collaborate online, I'm going to select Edit in Excel Online, where I can make changes in my browser. Today I'm working with my colleagues, Linda and Ben, on this spreadsheet. So I'm going to scroll up to the top of the screen. You can see that multiple new people are now editing this workbook. These two boxes indicate where Ben and Linda are. And you can see here, I can click on this to see who's working on this with me. I have Ben and I have Linda. So I'm sure they are busy entering some data here. I'm going to make an edit myself. This is an example of a piece of data that we actually use in a spreadsheet to plan events where the purple box is, is where Ben is, and Linda is here as well. And I'm going to enter some data and complete a simple Excel formula. You are able to do simple formulas in the Excel Online Web App. You can see I was able to successfully enter a sum formula. And Linda is to my right editing. She will sum that column as well. You can see that Linda just left the document. And only Ben is remaining editing with me in real time. Now I'm going to show you how you can note that changes were made by you or somebody else that you were collaborating with. Under Book 1 to the right you can see that about a minute ago Ben Williams was modifying the document. And that's how you collaborate with colleagues using Excel Online Web App. I hope you found this information useful.