Sometimes, when you try to open a Word file it fails to open and displays the following message – Word cannot open the file because the file format does not match the file extension.

This is the demonstration file to accompany the article, How to use Microsoft Excel’s VSTACK() function to combine multiple data sets by Susan Harkins.

This is the demonstration file to accompany the article, How to use shortcuts to sort in Microsoft Excel, by Susan Harkins.

I can create a new Android project and run it. But opening the sample doesn't work for some reason. I compared the manifest file from my little HelloWorld and the downloaded sample.

If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

Microsoft open sourced a Copilot Chat sample app that organizations can use as a blueprint for their own customized chatbots based on advanced generative AI tech.