> For the complete documentation index, see [llms.txt](https://help.tillit.cloud/tillit/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.tillit.cloud/tillit/tools/excel-addin-v2/how-to-install/desktop.md).

# Desktop

### Add Location to Trust Center

In Excel, go to **File** → **Options**. A pop-up will appear.

Select **Trust Center** from the sidebar, then click the **Trust Center Settings** button.

<figure><img src="/files/JB1ooBC2egbeiXcNQbO0" alt=""><figcaption></figcaption></figure>

In the next dialog, click **Trusted Add-in Catalogs**.

<figure><img src="/files/3oNfxyeb8vCudr4zpFkJ" alt=""><figcaption></figcaption></figure>

Now, find the folder where you saved the manifest file using Windows Explorer. Right-click the **folder** (not the file) and select **Give access to** → **Specific people**.

<figure><img src="/files/s8QohExSsIDO50IEBMqw" alt=""><figcaption></figcaption></figure>

Select your username from the list, then click **Share**.

<figure><img src="/files/hLgWk77CQBTaEeVJfwbO" alt=""><figcaption></figcaption></figure>

You will be given a shared path. Right-click it and select **Copy Link**.

<figure><img src="/files/AGBiQmf1AVRQ3l5l83qT" alt=""><figcaption></figcaption></figure>

Back in Excel, paste the path into the **Catalog Url** field. Remove any surrounding brackets and the folder name at the start, leaving only the file path. Click **Add Catalog**.

<figure><img src="/files/0oK4heJeiJFYl0lxcNAS" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/t4FRcGm7NBU2LIPnNKmH" alt=""><figcaption></figcaption></figure>

Once added, tick **Show in Menu** next to the newly added entry, then click **OK**.

<figure><img src="/files/C7dekI8flgHQVME8ieHp" alt=""><figcaption></figcaption></figure>

### Inserting the Add-in

Restart Excel after adding the catalog location.

In the **Home** tab, click **Add-ins**.

<figure><img src="/files/r3DNb7Iv6asKvtDvrJJD" alt=""><figcaption></figcaption></figure>

In the pop-up, click **More Add-ins**.

<figure><img src="/files/jgh02XF8BTfg81hxr86R" alt=""><figcaption></figcaption></figure>

Go to **My Organization** and select the TilliT V2 add-in.

<figure><img src="/files/6kcbM3oCrnyR5sQ62UT2" alt=""><figcaption></figcaption></figure>

The **TilliT V2** tab will now appear in the Excel ribbon.

<figure><img src="/files/Ts8MaCuCh0j4YqfyXuqN" alt=""><figcaption></figcaption></figure>