Did you get hit by the disappearing Excel add-in affliction recently? After a long couple of weeks, that frustrating Excel problem is finally solved. After spending countless hours on that issue (details below), I was happy to get back to more productive work, updating my website and sample files. I hope the rest of the summer goes smoothly!

您最近是否受到消失的Excel加载项困扰的打击？ 几周后，那个令人沮丧的Excel问题终于解决了。 在这个问题上花费了无数小时之后(下面有详细信息)，我很高兴回到更富有成效的工作，更新了我的网站和示例文件。 我希望整个夏天都能顺利进行！

Excel仪表板网络研讨会 (Excel Dashboard Webinars)

Mynda Treacy has just opened registration for her highly-rated Excel Dashboard course, and you can get 20% off if you register by Thursday, August 11th. I’ve been through the course, and was very impressed with the content, and Mynda’s presentation skills.

Mynda Treacy刚刚开放了她备受好评的Excel Dashboard课程的注册，如果您在8月11日(星期四)之前注册，可以享受20％的折扣 。 我已经完成了本课程，并且对内容和Mynda的演示技巧印象深刻。

Mynda is also offering FREE Excel Dashboard Webinars for the next few days, so sign up for one of those, if you haven’t attended before. They’re jam-packed with Excel tips, and you’ll learn a lot in just one hour. It’s well worth your time.

Mynda还将在接下来的几天内提供免费的Excel仪表板网络研讨会 ，因此，如果您从未参加过，请注册其中一个。 它们充满了Excel技巧，您将在一个小时内学到很多东西。 值得您花时间。

消失的Excel加载项 (Disappearing Excel Add-ins)

And now, here’s the sad story of the disappearing Excel Add-ins, and how that mystery wasted countless hours of many people’s time.  If you have violin music, you can play that in the background, to add to the drama.

而现在，这是消失的Excel加载项的悲惨故事，以及这个谜如何浪费了许多人无数小时的时间。 如果您有小提琴音乐，则可以在后台播放，以添加到戏剧中。

In mid-July, I heard from someone who had been using my Pivot Power Premium (PPP) add-in for a couple of years. He had recently upgraded to Excel 2016, and the add-in wasn’t opening correctly in that version – the PPP tab didn’t appear on the Excel Ribbon.

7月中旬，我听到有人使用我的Pivot Power Premium (PPP)加载项已有两年了。 他最近已升级到Excel 2016，并且该加载项在该版本中无法正确打开-PPP选项卡未出现在Excel功能区上。

To see the tab, he had to:

要查看该选项卡，他必须：

• Open the Add-in window, uncheck the PPP add-in, and close the window. 打开“加载项”窗口，取消选中“ PPP加载项”，然后关闭该窗口。
• Then, he had to open the window again, add a check mark for PPP, and close the Add-ins window. 然后，他必须再次打开该窗口，为PPP添加一个复选标记，然后关闭“加载项”窗口。

He probably banged his head on his desk a few times too, but was too polite to mention that!

他可能也几次在桌子上敲了一下头，但是客气地提了一下！

试图发现问题 (Trying to Find the Problem)

We exchanged a few emails, while troubleshooting the problem, but couldn’t find a fix. He patiently tried a couple of suggestions, but nothing worked.

我们在解决问题的同时交换了几封电子邮件，但找不到解决方法。 他耐心地尝试了一些建议，但没有任何效果。

The PPP add-in was working correctly on my computer, using the same version of Excel. So, all I could suggest was a macro to do the steps of uninstalling and installing the add-in, until we found something better.

使用相同版本的Excel，PPP加载项在我的计算机上正常工作。 因此，我所建议的只是一个宏，用于执行卸载和安装外接程序的步骤，直到发现更好的东西为止。

I figured it was a problem specific to his computer and/or Office installation, and we might fix it eventually. I promised to keep researching.

我发现这是特定于他的计算机和/或Office安装的问题，我们最终可能会解决它。 我答应继续研究。

更多问题报告 (More Problem Reports)

A week or so later, I heard from a few more customers, who had bought the PPP add-in or my Excel Tools add-in. All had been using the tools without problems for a long time, and the problems had just started. They had to go through the same steps as the first customer, to make the Ribbon tab appear.

大约一周后，我又收到了一些购买PPP加载项或Excel Tools加载项的客户的消息 。 所有人使用工具都没有问题已有很长时间了，问题才刚刚开始。 他们必须执行与第一个客户相同的步骤，才能显示“功能区”选项卡。

Some customers were using Excel 2016, but others were using different versions. So, it obviously wasn’t machine or installation specific! A couple of customers mentioned a recent Microsoft update, so that was a clue to when and why things started going wrong.

一些客户使用Excel 2016，但其他客户使用不同的版本。 因此，显然不是机器或安装专用的！ 几个客户提到了Microsoft最近的更新，因此这是什么时候以及为什么事情开始出错的线索。

更多失败的实验 (More Failed Experiments)

Another customer was willing to test things, so we tried a few more experiments, but again, nothing worked. By the way, if you have to work with the Excel add-ins more than occasionally, be sure to show the Developer tab on the Ribbon, and use the Add-ins command there. It’s much quicker than going through Excel Options.

另一个客户愿意进行测试，因此我们尝试了更多的实验，但是仍然没有任何效果。 顺便说一句，如果您需要多次使用Excel加载项，请确保在功能区上显示“开发人员”选项卡，然后在此处使用“加载项”命令。 它比通过Excel Options更快。

寻求帮助 (Looking for Help)

It was time to look for help with the problem, so I asked my Excel colleagues if any of them were seeing similar reports from their customers. The good news -- answer was a resounding, “Yes!”. One person was even seeing it on his own computer, with someone else’s add-in. The bad news -- nobody had found a solution yet. We reported the problem to Microsoft, to see if they could offer any help.

现在是时候寻求有关该问题的帮助了，所以我问我的Excel同事是否有人从他们的客户那里看到类似的报告。 好消息-答案是肯定的，“是！”。 甚至有人用自己的计算机在别人的附件上看到它。 坏消息-还没有人找到解决方案。 我们已将问题报告给Microsoft，以查看他们是否可以提供任何帮助。

最后一个修复 (Finally a Fix )

Finally, after many days of searching, and wasted hours of developer and customer time, a solution was posted in one of the Microsoft forums. A big thank you to Jon Peltier, who alerted the rest of us to the fix, which was buried in a long and confusing discussion.

最终，经过数天的搜索，并浪费了开发人员和客户时间，在一个Microsoft论坛中发布了一个解决方案。 乔恩·Perl捷 ( Jon Peltier)非常感谢您，他使我们其他人都知道了解决方案，该解决方案陷入了漫长而混乱的讨论之中。

发生了什么以及如何修复 (What Happened and How to Fix It)

The problem was triggered by a mid-July Microsoft security update, which changed the way that certain types of Excel files are handled. If files had been download from the Internet, like most add-in are, they had a security setting that was marked as Blocked.

该问题是由7月中旬的Microsoft安全更新触发的，该安全更新更改了处理某些类型的Excel文件的方式。 如果像大多数外接程序一样从Internet下载文件，则它们的安全设置被标记为“已阻止”。

To allow those add-in files to open automatically when Excel opens, you can follow the steps below, to manually unblock then.

要使这些加载项文件在Excel打开时自动打开，您可以按照以下步骤操作，然后手动解除阻止。

1. Open Windows Explorer, and open the folder where you stored the add-in file, usually the Microsoft Addins folder.

   打开Windows资源管理器，然后打开存储外接程序文件的文件夹，通常是Microsoft外接程序文件夹。

   Open Windows Explorer, and open the folder where you stored the add-in file, usually the Microsoft Addins folder. NOTE: If you aren't sure of the Addins folder location, you can use my Excel Addin Folder Path file to find it.

   打开Windows资源管理器，然后打开存储外接程序文件的文件夹，通常是Microsoft外接程序文件夹。 注意 ：如果不确定Addins文件夹的位置，则可以使用我的Excel Addin文件夹路径文件进行查找。

2. Close Excel, if it is running 关闭Excel(如果正在运行)

3. Right click on the add-in file and click Properties

   右键单击加载项文件，然后单击“属性”。

4. If the following warning appears at the bottom of the Properties window, click the Unblock box, to add a check mark -- "This file came from another computer and might be blocked to help protect this computer"

   如果在“属性”窗口的底部出现以下警告，请单击“取消阻止”框， 添加一个复选标记 -“此文件来自另一台计算机，可能被阻止以保护此计算机”

5. Click OK, to close the Properties window单击确定，关闭“属性”窗口
6. Then, start Excel, and the custom tab for the add-in should appear on the Excel Ribbon 然后，启动Excel，该加载项的自定义选项卡应出现在Excel功能区上

If you had the problem of disappearing Excel add-ins, did that fix work for you?

如果您遇到了Excel加载项消失的问题，那么该修复程序对您有用吗？