 In this video I want to show you how to upload a spreadsheet file from your local system into the Wolfram Cloud and then how to access it inside of a notebook. So I'm on the Wolfram Cloud here. You can see I'm using Wolfram 1 but you can be using Wolfram Cloud or Programming Lab. It does not matter. And on the top right here I've clicked on Cloud Files. If I click on Cloud Files I can actually see my home directory and what's inside of it. It's very easy to create a new folder. And I would suggest that you do create a new folder to save all your work in. And on the little red dropdown arrow there we can see New Folder. So you can create a new folder and you can name that folder. So I've already done so and here there's Coursera. I'm going to double click on it and you can see there's some files in there. But I want to upload a CSV file, a comma separated value spreadsheet file into this folder. So if I click on this dropdown here we can see from the bottom to the top I'm in my home folder and Coursera is a sub folder inside of that. On the left here to the left of this little red box there's an upward facing arrow and if I hover over that button it says Upload Files. And that's what I want to do. I want to upload a file from my local system into the Wolfram Cloud. I've clicked on that and I've navigated to my desktop which is where I've saved this file cloud.csv. So I'm going to click on it and say Open. And just like that the file is uploaded and we can actually see it here cloud.csv. Now in this exact same folder, this Coursera sub folder, I'm going to create a new notebook and I can either use this red dropdown and say New Notebook or just a shortcut there. I can click on that and say New Notebook. So let's increase the screen size here so we can see everything. So the first thing we want to do is to name this new notebook. So I'm going to click on that and I'm going to call it Cloud. But you see what has happened. Even though if I go to Cloud Files we are inside of this Coursera directory on the right hand side. It will be saved in the home directory so it's going to default to that and you have to say Choose another directory. And now I can double click on Coursera again and click Choose. It will now be in the Coursera sub directory of the home directory or folder. And that is where my data file is and that's exactly what I want. So now I can click the little check mark there. The file has been renamed and there we go we can actually see it. Cloud.nb. Now the first thing we have to do is exactly the same as in the desktop version. We have to say Set Directory. We can click on that and we're going to set it to the notebook directory. There are no arguments there and I'm going to close the square brackets. I'm not going to put a semicolon because I want to show you what the directory structure actually looks like. And there you can see it. It's something that we can't really make any sense of. But we do know now that our CSV file is in the sub folder or sub directory and our notebook is in the sub folder or sub directory and we've actually set the directory. Now we can give our data set a name. I'm going to call mine data and I'm going to say semantic import. Before we could not use semantic import in the cloud we can now do so. And that is wonderful because we don't have to work with a normal import and do all sorts of things to create a data set from a normal import. So I'm just going to now say cloud.csv. That was remember the name of our CSV file. And because we've set the directory, it's not going to look anywhere else. It's only going to look in the course of the sub directory. Shift enter, shift return. And it's going to take a little bit and it's going to import the CSV file for us as a data set object. And there we can see the data set object beautifully displayed to the screen there. And that's very easy for us to do some descriptive statistics. For instance, we see an age column there. Let's look at what the mean or average age I want that expressed as a numerical value or decimal value. Let's just use the square bracket notation for that. I'm going to say data. That's my data object. And I want the mean comma of what column? Well, I want the age column. And just like that, I see that the mean age is 47.6579 years. So there you go just to recap. When you are inside of the Wolfram Cloud, create a new folder. And you do all of that by being in the cloud files up here. Let me click off of it. Let me click back on it on the top right here. And that's going to show the structure. Remember where you are. You can also use these three little lines here. And that will show you all your folders. Remember always to go to the home directory. And then you can create a new folder by this little drop down there. New folder. You can name your folder. If it's named, go to it by double clicking. And this is where you're going to do your upload. Navigate to your folder structure on your computer. Find that file and hit upload. And it's going to upload inside of your subfolder or sub directory here. When you create a new notebook, though, remember to name it. And remember to specify where it has to be saved. And save it in that exact same folder or directory in which you have your comma separated values file. And that's it. It makes it very easy to use. Last thing though, always, always remember to set the directory to the notebook directory. I hope that's helped you. Let me know in the comments section. If there are any other questions or indeed questions about anything in the course.