There are a couple reasons you may be experiencing this issue. I would suggest the following options. You may have already tried these suggestions, so I will list them below.

1. Reload the page, click play and then as the video starts to play, click pause. Allow the video to load fully before watching any of the video. Once it has fully loaded, press play.

2. Switch to a different internet browser. I tested in Google Chrome, Firefox and Internet Explorer and the video played for me.

3. Check your flash player for updates. Click this link: http://get.adobe.com/flashplayer/ and it should let you know if your flash player is out of date and needs to be updated.

It also could have been caused by a glitch in your internet connection, which is the most common cause for this issue. If this was the case, you should be able to watch the video in its entirety by using option 1 above.

In this example we will combine cells A1 & B1.

First, add a column to the spreadsheet. Then write this formula into the first field in this column:

=A1&" "&B1&""

Hit enter and you will see the new data in this field. (i.e. A1 B1)

Then copy this formula down the column by double clicking the bottom right hand corner of the cell (i.e. on the box that you would otherwise drag).

Once you have copied the formula down the field, you will need to copy/the column and then Paste As and select Paste Values so that you will have the actual text in the field and not just the formula.

Then save your file.

Here are instructions to clear your cache for each of the browsers:

Internet Explorer 9 and 8

* Click Tools, and select Delete Browsing History... .
* Deselect Preserve Favorites website data, and select Temporary Internet files, Cookies, and History.
* Click Delete.

Internet Explorer 7

* From the Tools menu in the upper right, select Delete Browsing History... .
* To delete your cache, click Delete files... . To delete your cookies, click Delete cookies... .
* To delete your history, click Delete history... .
* Click Close, and then click OK to exit.

Firefox

* The following instructions apply to Firefox 3.5 and later.
* From the Tools menu, select Clear Recent History. (Alternatively, in Firefox 4 and above for Windows, you can also click the orange Firefox button, and then select Clear Recent History from the History menu.) If the menu bar is hidden, press Alt to make it visible.
* From the Time range to clear: drop-down menu, select the desired range; to clear your entire cache, select Everything.
* Click the down arrow next to "Details" to choose which elements of the history to clear. Click Clear Now.

Chrome

* In the browser bar, enter: chrome://settings/clearBrowserData
* Select the items you want to clear (e.g., Clear browsing history, Clear download history, Empty the cache, Delete cookies and other site and plug-in data). From the Obliterate the following items from: drop-down menu, you can choose the period of time for which you want to clear cached information. To clear your entire cache, select the beginning of time.
* Click Clear browsing data.

Opera

* From the Opera menu, select Settings, and then Delete Private Data... .
* In the dialog box that opens, select the items you want to clear, and then click Delete.

Safari

* From the Safari menu, select Reset Safari... .
* From the menu, select the items you want to reset, and then click Reset. As of Safari 5.1, Remove all website data covers both cookies and cache.

Sometimes, when you copy the contents of a cell, you want to paste just the value and not the underlying formula that is displayed in the formula bar.

For example, you might want to copy the resulting value of a formula to a cell on another worksheet. Or you might want to delete the values that you used in a formula after you copied the resulting value to another cell on the worksheet. Both of these actions cause an invalid cell reference error (#REF!) error to appear in the destination cell, because the cells that contain the values that you used in the formula can no longer be referenced.

You can avoid this error by pasting the resulting values of formulas without the formula in destination cells.

1. On a worksheet, select the cells that contain the resulting values of a formula that you want to copy.
2. On the Home tab, in the Clipboard group, click Copy .

Keyboard shortcut  You can also press CTRL+C.

3. Select the upper-left cell of the paste area.

Tip    To move or copy a selection to a different worksheet or workbook, click another worksheet tab or switch to another workbook, and then select the upper-left cell of the paste area.

4. On the Home tab, in the Clipboard group, click Paste , and then click Paste Values.

The spreadsheet files are Microsoft Excel files, so you will need to either open with Office for Mac, or you can also upload to Google drive and use it the same way. Here is a tutorial for how to use Google Drive:1. Let's say you have an Excel spreadsheet you want to edit where ever you are without a need for having Microsoft Office installed.

2. Open Google Docs homepage, click here to go there. Login to you Google account if asked so.

3. In Google Docs homepage click Upload button next to Create and choose Files...

4. Browse and double click the document you want to import to Google Docs.

5. Choose the Convert documents, presentations, spreadsheets to Google Docs format option and click Start upload.

6. When upload is complete, click to open the file you just uploaded.

7. And there's your spreadsheet with most of the formatting and calculation formulas included. Majority of the Excel formulas and function should be able to work in Google Docs as well.

8. And there's an imported Excel spreadsheet (now a Google Docs spreadsheet) among your other Google Docs documents.

You can also import Microsoft Word document and Microsoft PowerPoint document and turn in to a Google Docs document the same way we did it in this tutorial. All you need is a computer, tablet or a smartphone and a working Internet connection and you can work with your documents online in Google Docs.