Hello! the API is in preview now! Make sure to have the latest insiders fast and use our Beta CDN, more info on this here https://aka.ms/excelapiopenspec
Here is a sample code snippet using the API
key line of code context.workbook.worksheets.addFromBase64(mybase64)
send an xlsx (base64 encoded)
please use it and send us feedback!Bowei Han commented
We are trying to do something similar but the API - context.workbook.worksheets.addFromBase64(mybase64) - is throwing a "Not Implemented" exception for us even though we have the Beta CDN in office online. In the documentation it says that replace workbook is a beta feature - https://github.com/OfficeDev/office-js-docs - but the API is not included in the exhaustive list - https://github.com/OfficeDev/office-js-docs/blob/ExcelJs_OpenSpec/betaMembers.md. Is there something that we are missing?
226 votes13 comments · Feature Requests and Feedback » Add-in: General/Shared · Flag idea as inappropriate… · Admin →Bowei Han supported this idea ·