Please Note: This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: Error Opening Second Workbook.

Error Opening Second Workbook

by Allen Wyatt
(last updated November 11, 2014)

When you open a second Excel workbook, do you see an error message indicating that "PERSONAL.XLS is already open?" If so, this problem has to do with how you are opening the second workbook.

There are two ways you can open workbooks: either from within Excel or from the operating system. Opening a workbook from within Excel is done by using the Open tool on the toolbar or by choosing File | Open. Opening a workbook from the operating system is done if you double-click on a workbook icon.

Every time you open a workbook from the operating system, you are starting another instance of Excel. The error message appears only if you have a Personal.xls workbook on your system and only if you open a second workbook using the operating system method. The first time you open a workbook, it loads Personal.xls. The second time you open a workbook (remember—you are actually opening another instance of Excel) the program tries to load Personal.xls again. Since it is already open, you get the error.

The solution is to open the second workbook from within Excel, not from the operating system. Use the method of opening a workbook appropriate within your version of Excel and you won't see the error message.

If you must open a second instance of Excel and you don't want the error message, find the Personal.xls workbook using Windows' Search feature. (Do this in Windows, not in Excel.) Right-click the file and choose Properties. In the Properties dialog box for the file, choose to make the file Read-Only. Once the file is read-only, you no longer get the error when you open up secondary instances of Excel. Why? Because the first instance doesn't leave the file open due to it being read-only.

You can also bypass the error condition completely if you make one small configuration change in Excel. Follow these steps:

  1. Choose Options from the Tools menu. Excel displays the Options dialog box.
  2. Make sure the General tab is displayed. (See Figure 1.)
  3. Figure 1. The General tab of the Options dialog box.

  4. Make sure the Ignore Other Applications check box is not selected.
  5. Click OK.

According to Excel's help system, if the Ignore Other Applications check box is selected, then Excel won't share DDE information with other applications. This isn't all, however—it also affects how Excel starts when you double-click on a workbook in Windows and you already have Excel open. If the option is cleared (as it should be), then Excel starts the new workbook in the current instance of Excel. If it is selected (as it may be), then Excel tries to open a second instance of itself, and you will see an error message if you have a Personal.xls file on your system.

If changing the Ignore Other Applications check box causes unforeseen problems in other ways you use Excel, then you might also consider converting your Personal.xls file to an add-in. (How to create add-ins has been covered in other issues of ExcelTips.) Add-ins are opened in a special status, akin to read-only, and can therefore be opened by more than one instance of Excel.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (2501) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Error Opening Second Workbook.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He  is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Protecting Fields

Fields are very helpful for inserting dynamic information or standardizing the information that appears in a document. ...

Discover More

Ignoring Smart Quotes when Comparing Text

When comparing two pieces of text, you may find that Word's smart quotes can mess up the comparison. Here's a quick way ...

Discover More

Shortcut Key for Non-Breaking Space

Most of the time you'll use regular spaces between words in a document, but there may be times you want to use a special ...

Discover More

Comprehensive VBA Guide Visual Basic for Applications (VBA) is the language used for writing macros in all Office programs. This complete guide shows both professionals and novices how to master VBA in order to customize the entire Office suite for their needs. Check out Mastering VBA for Office 2010 today!

More ExcelTips (menu)

Importing Huge Data Files

Sometimes, when importing data created by other programs, you may find that there is too much for Excel to handle. Here's ...

Discover More

Reducing File Size

As you work with a workbook (particularly one that contains macros) you may notice that the workbook size can become ...

Discover More

Use Filenames That Sort Properly

When storing your Excel workbook, you need to specify a file name to be used for the workbook. Take a moment to consider ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is eight minus 5?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


This Site

Got a version of Excel that uses the menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)? This site is for you! If you use a later version of Excel, visit our ExcelTips site focusing on the ribbon interface.

Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.