Macabacus Lite


Macabacus Lite is a VBA add-in, so no actual installation—in the traditional sense—is required. Therefore, Macabacus Lite can be "installed" even where corporate IT protocols restrict software installation.

1. Download the add-in

Complete this form to receive an email with the Macabacus Lite download links. The downloaded file will be named MacabacusLite.xlam. If you do not receive the email within a few minutes, check your spam filter and firewall settings. If you are still unable to receive email sent from [email protected], use another email address.

Do not open the add-in

If your browser lets you choose to open or save the downloaded add-in, save it.

2. Move the add-in

Excel Add-Ins dialog

Move the downloaded add-in to the following recommended folder:

C:\Users\%USER NAME%\AppData\Roaming\Microsoft\AddIns

The exact path may differ on your computer. Replace %USER NAME% with your own, of course. If the AppData folder is hidden, follow these instructions to display it.

3. Unblock the add-in

Since a July 2016 Office security update, you must "unblock" VBA add-ins. To unblock Macabacus Lite, right-click MacabacusLite.xlam in Windows Explorer, click Properties in the context menu, and click the Unblock button. If you do not unblock Macabacus Lite, it may not load automatically when starting Excel.

4. Load the add-in

Load Macabacus Lite from Excel's Add-ins dialog (Alt>T>I) shown to the right. If Macabacus Lite is not listed, click the Browse button to find MacabacusLite.xlam on your computer. If Macabacus Lite was previously installed, Excel may prompt you to replace the add-in—click Yes. Finally, check the box next to Macabacus Lite and click the OK button.


Uncheck the Macabacus Lite box in Excel's Add-ins dialog (if applicable) and remove the add-in from the XLSTART folder (or where ever it resides). See these Microsoft instructions if more detail is required.


An error message says that your copy of Macabacus Lite is not authorized for your computer

Your Macabacus Lite installation is valid for a single computer. If you switch computers, download another copy of Macabacus Lite for the new computer. Be sure to back up your Macabacus Lite settings on your old PC so that you can import them on your new PC.

Macabacus Lite will not save customized settings

Ensure that the folder in which MacabacusLite.xlam resides, and its parent folders, are not read-only.

An error message says "Can't find project or library" after installing Macabacus Lite

Make sure that you have Microsoft XML, v6.0 installed. A typical Office installation will include Microsoft XML, v6.0, however, some versions (e.g., student editions) may not. To install Microsoft XML, use your Office installation CD, DVD, or file.

This documentation refers to Macabacus version 9.1.10. Some features and descriptions of these features may not
apply to older versions of Macabacus. Update your Macabacus software to take advantage of the latest features.