Install the Formula Audit XL task pane
The task pane edition runs wherever Excel runs — the web, Windows and Mac. It installs from one manifest file instead of an installer, so you can add it yourself in about a minute, or an admin can push it to everyone. No data leaves your machine.
The manifest URL
https://formulaudit.com/addin/manifest.xml
This is the only address you need. To install it yourself, right-click the link, choose “Save link as”, and keep the file — Excel asks you to upload it. An admin pastes the URL straight into the Microsoft 365 admin center.
Which edition should I use?
On Windows, the one-click installer gives you the full ribbon: Model Check, Cell Map, precedent and dependent tracing, named-range and consistency checks.
On the web or a Mac, use the task pane. It runs Model Check and traces precedents and dependents from a side panel in the same workbook.
What the pane does
- Model Check: a score, the high-risk count, and every finding
- A per-sheet breakdown of where the risk sits
- Trace the precedents and dependents of any cell
- Choose a finding to jump straight to the cell
Install it for yourself
Pick your Excel. No admin rights are needed on the web or on a Mac.
Excel on the web
about a minute- 1 Save the manifest to your computer: right-click the manifest link above and choose “Save link as”.
- 2 Open any workbook at excel.cloud.microsoft (or in Excel on the web through OneDrive or SharePoint).
- 3 On the Home tab, choose Add-ins, then More Add-ins.
- 4 Open the My Add-ins tab and choose Upload My Add-in.
- 5 Choose Browse, pick the manifest.xml you saved, then choose Upload.
- 6 The Formula Audit XL button appears on the Home tab. Choose Audit model to open the pane.
An uploaded add-in stays available to you in that browser. Upload it again after you clear site data.
Excel for Windows (desktop)
about five minutes- 1 Put the saved manifest.xml in a folder on a network share you can reach, for example \\server\addins. Excel for Windows only sideloads from a share, not from a local drive.
- 2 In Excel, choose File → Options → Trust Center → Trust Center Settings → Trusted Add-in Catalogs.
- 3 Paste the share path into Catalog Url, choose Add catalog, then tick Show in Menu.
- 4 Choose OK twice and restart Excel.
- 5 Choose Home → Add-ins → More Add-ins → Shared Folder, pick the add-in, and choose Add.
On a managed laptop you may not be able to add a trusted catalogue. Ask your admin to use Centralized Deployment below, or install the Windows installer instead.
Excel for Mac
about two minutes- 1 Open Finder and press ⇧⌘G, then go to ~/Library/Containers/com.microsoft.Excel/Data/Documents/wef. Create the wef folder if it is not there.
- 2 Copy the saved manifest.xml into that folder.
- 3 Quit Excel completely and reopen it.
- 4 Choose Home → Add-ins → My Add-ins, then pick Formula Audit XL.
The Windows .xlam installer does not run on a Mac. The task pane is the Mac edition.
Deploy it across your organisation
Microsoft 365 Centralized Deployment puts the pane in every user’s Excel — web, Windows and Mac — without anyone touching a file. It needs no store listing and no software on the endpoint.
- 1 Sign in to admin.microsoft.com as a Global Administrator or an Exchange Administrator.
- 2 Choose Settings → Integrated apps, then Upload custom apps.
- 3 Choose App type: Office Add-in.
- 4 Choose “Provide link to manifest file” and paste https://formulaudit.com/addin/manifest.xml.
- 5 Choose who gets it: Just me, Entire organization, or specific users and groups.
- 6 Review the requested permissions (read and write the open workbook — nothing else), then choose Deploy.
Microsoft can take up to 24 hours to propagate a new deployment to every client. Because the deployment points at a URL, updates reach your users without a second upload.
Requirements
- Excel on the web, Excel for Windows 2016 or later, or Excel for Mac
- A Microsoft 365 or Office account signed in to Excel
- No installer, no admin rights, no macros
- The pane reads the open workbook only — no file is uploaded
Trial and licence
- The pane starts a 7-day trial the first time you open it
- Paste your licence key into the pane to keep it
- One key, both editions — a single-seat key runs on one of them at a time
- See plans →
The pane will not open, or opens blank? Check that your network allows
formulaudit.com and Microsoft’s add-in CDN, then
contact us — we answer every message.
Auditing on Windows instead?
For Microsoft Excel on Windows: 2016, 2019, 2021 & 365 · No data leaves your machine