What you receive A production Office manifest XML for the Yigcore Excel Add-in. The manifest points to the live add-in runtime; it does not embed API keys, payment tokens, workbook data, or license keys. The PDF guide covers download, Excel deployment, login, trial activation, paid license activation, and troubleshooting. Install path Download the manifest XML after email verification. Open Excel > Insert > Add-ins > My Add-ins > Upload My Add-in, then choose the XML. Open Yigcore in Excel, then sign in or paste your trial/purchase license key under Settings > License.
Company tenants can deploy the same manifest centrally through Microsoft 365 Admin Center.
If upload is missing
If Excel asks you to add or enable add-in catalogs from Trust Center, add the manifest
through a trusted shared-folder catalog, or ask your Microsoft 365 admin to deploy it.
Copy the manifest XML into a shared folder such as C:\YigcoreAddins. Add the folder's network path in Trust Center > Trusted Add-in Catalogs. Enable Show in Menu, restart Excel, then open My Add-ins > Shared Folder. User manuals
Download the step-by-step PRD deployment and activation manual before installing Excel.
Credential upgrade note
Current releases are designed to share provider keys and gateway tokens in Excel
SharedRuntime memory rather than persist new raw credentials in
OfficeRuntime.storage. Earlier formula-bridge builds may have left legacy
credentials. Before upgrading, clear the API key or gateway token in Settings, then
re-enter it after the upgrade.