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After you bring your data into PowerPivot you can manage the data within both the PowerPivot datasheet and also within your PivotTables. In this movie I will show you how to work with PowerPivot columns of data. So to display the data that I have in this worksheet, I will click the PowerPivot tab and then open the PowerPivot window by clicking the PowerPivot Window button in the Launch section of this tab on the Ribbon, and when I do my data appears in PowerPivot, and to indicate how much data we're working with, at the bottom left corner you can see that we are currently looking at Row 1 of 964,260.
In PowerPivot as in Excel you can manipulate the columns inside of the PowerPivot window. So let's say for example that you want to hide a particular column and in this case we will just say that we want to hide the Product column, to do that you can right-click the column header and then click Hide Columns and then select whether you want to hide the column from the PowerPivot window and the PivotTable, just from the PivotTables, or just from PowerPivot. In this case I just want to hide it from PowerPivot but I want to leave the column available for my PivotTables.
So then I will click from PowerPivot. When I do the column disappears. Now the data hasn't been deleted. It's still there. It's just that I don't have to see it within the PowerPivot window. If I want to bring it back I can right- click any column header, click Unhide Columns to display the Hide and Unhide Columns dialog box, and then scroll down and I see that the Product table isn't checked in the In PowerPivot window column. So I can check the box to bring it back and click OK.
If you want to display the Hide and Unhide Columns dialog box and manipulate columns more than one at the time, you can click the Design tab, click the Hide and Unhide button, and the dialog box appears. If you do want to delete a column for the PowerPivot model permanently, then you right-click the column header in the PowerPivot datasheet and then click Delete Column. So I won't go all the way through with us, but let's say that I wanted to delete the Total column. To do that I would right-click the column header and then click Delete Columns.
And then after PowerPivot asked if I were serious about deleting that column I would say yes. But in this case I don't want to get rid of it. So I'll just click away from the Shortcut List to remove the selection. If you remove a column from the data model, it is permanent. You would have to create a new data model to bring the data back but the data still exists in the source table. One other way that you can manipulate columns inside of the PowerPivot window is to freeze columns at the left side of the worksheet.
So say that I go back to the Home tab and I will resize the PowerPivot window just so we don't see the right edge. so you can see what happens when we scroll. And now I will click any cell in the first column. That's the OrderID column. Then I will click the Freeze Buttons down arrow on the Home tab of the PowerPivot window and then click Freeze. When I do you see this thin black line appear. That's because the OrderID column is now frozen to the left side, and it won't disappear when I scroll past.
So if I scroll to the right to display the hidden rows at the right edge of the sheet, then you see that the OrderID column stays regardless of how far to the right I scroll. Now if I click the Freeze button's down arrow again and click Unfreeze then Excel removes the selection. You won't need to use every column of data you bring into PowerPivot so you can either delete the columns you don't want or if you think they might be useful in the future hide them from the datasheet or the PivotTable. Any of these actions reduces crowding within PowerPivot, making it easier to understand your data at a glance.
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