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Microsoft Excel can't find the add-in I want to use.

Check the add-in file on your computer    The file may have been renamed, moved, or deleted. Add-ins (add-in: A supplemental program that adds custom commands or custom features to Microsoft Office.) have an .xla file extension (to see the .xla extension, you may need to turn on the display of extensions in Windows). Add-ins are stored by default in one of the following places:

• The Library folder or one of its subfolders in the Microsoft Office/Office folder.

• The Documents and Settings/<user name>/Application Data/Microsoft/AddIns folder.

The administrator for your company's network can designate other locations for add-in programs. See your administrator for more information.

You can reinstall an Excel add-in by using the program that you used to install Excel. To find and load an add-in that isn't stored in one of the default locations, click Add-Ins on the Tools menu, and then click Browse.

If the add-in is stored on a network, check the network drive    The network drive may be unavailable. To ensure that you can use the add-in when your network is unavailable or your computer is offline, keep a copy of the add-in on your computer.

If you are working on a different computer, check your original computer    For the add-in to be available on other computers that you use, you must store it on your original computer in the Documents and Settings/<user name>/Application Data/Microsoft/AddIns folder. Check with the administrator for your company's computer systems for more information about working on other computers.

Check with your Office or Excel administrator    Your administrator may have decided not to make the add-in available for installation. In this case, you may need to reinstall Office or Excel. Check with your administrator for more information.