> ## Documentation Index
> Fetch the complete documentation index at: https://artemis.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# README

# Excel on MAC / Excel online

* Make sure that have a Microsoft 365 subscription. Microsoft does not offer plug-in support for standalone Office for Mac purchases, such as Office for Mac 2019. You can check which version of Excel you have by navigating to **File -> Account -> About Excel**.
* "Centralized Deployment" of Office add-ins requires that the user has a valid Exchange license, as listed here -> [Determine if Centralized Deployment of add-ins works for your organization - Microsoft 365 admin | Microsoft Learn](https://learn.microsoft.com/en-us/microsoft-365/admin/manage/centralized-deployment-of-add-ins?view=o365-worldwide), so make sure you install the Artemis Sheets add-in locally and not for all users. After installation, the add-in must appear in the My Add-ins tab and not in Admin Managed tab.

![](https://mintlify.s3.us-west-1.amazonaws.com/artemis-db73460d/images/image%20\(54\).png)

* One of the most successful troubleshooting tips we use for a variety of common issues is to refresh your Artemis Sheets Add-in. This will clear your cache, update new features and platform upgrades and make sure you have the latest, stable version running. Here are the steps to clear the cache:

  * Go to **Insert** menu and click **My Add-ins** button
  * Click the upper right corner **Refresh** button

  ![](https://mintlify.s3.us-west-1.amazonaws.com/artemis-db73460d/images/image%20\(38\).png)

  * Click the Artemis Sheets add-in box (so it's highlighted)

  ![](https://mintlify.s3.us-west-1.amazonaws.com/artemis-db73460d/images/image%20\(51\).png)

  * Click the lower right corner **Add** button

  ![](https://mintlify.s3.us-west-1.amazonaws.com/artemis-db73460d/images/image%20\(28\).png)

If the above didn't solve your issues, try to manually clear the Office cache.

* On MAC this is done by deleting the contents of the below folders(s)
  * `/Users/{your_name_on_the_device}/Library/Containers/com.Microsoft.OsfWebHost/Data`
  * `/Users/{your_name_on_the_device}/Library/Containers/com.microsoft.Excel/Data`
* On Windows delete the content of the folder `%LOCALAPPDATA%\Microsoft\Office\16.0\Wef`.
* For Excel Online clear the browser cache.


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