We upload the manifest file to the chrome browser version of Excel 365 and it works fine, but then it is not saved in the Office account. So that next time we open the Excel file, the same or another, we need to upload the manifest file again.
Release : SAAS
Component : API FOR AGILE CENTRAL
Our Excel Add-in does not currently support the Browser Version of Excel. If you would like to see this functionality in our Add-in, we recommend that you submit your feedback to Rally using the “question mark button" (top right corner of almost any page).