yohman

This plugin allows you to upload Word, Powerpoint and Excel files (doc, docx, ppt, pptx, xls and xlsx) through the media library uploader.

Allow Word/Powerpoint/Excel file uploads

This plugin allows you to upload Word, Powerpoint and Excel files through the media library uploader.

uWebChat

uWebChat is not just a live chat bot but an intelligent platform that integrates live chat, voice, video, and automated responses, all within Microsoft Teams, making it a versatile tool for any organization looking to improve their customer service and engagement. 
This plugin provides an effortless implementation. <a href="https://appsource.microsoft.com/en-en/product/office/WA200001347" rel="nofollow ugc">Click here</a> to download uWebChat for free from Microsoft AppSource. After you have downloaded and installed uWebChat for Microsoft Teams, this plugin makes it easy to embed the uWebChat button on your website or portal.

This plugin puts the uWebChat button on your website. You need to have the uWebChat Teams App installed in order to use this plugin.

Allow Word/Powerpoint/Excel file uploads vs uWebChat