Attempting to install or uninstall results in the error "Cannot create a file when that file already exists.”
For some reason, Visual Studio extensions can get in a weird state where you've uninstalled the VSIX extension, but some files were left behind. To work around this issue:

1. Exit Visual Studio
2. Open the following folder (it might be on a different drive on your machine)
    C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\Microsoft Corporation\NuGet Package Manager\<version>\
3. Delete all the files with the .deleteme extensions.
4. Re-open Visual Studio
After following these steps, you should be able to continue.

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as:

• High-performance generation of word-processing documents, spreadsheets, and presentations.
• Document modification, such as adding, updating, and removing content and metadata.
• Search and replace content using regular expressions.
• Splitting up (shredding) a file into multiple files, and combining multiple files into a single file.
• Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. 

This video shows how to create a microservice from scratch using .NET 5. You will learn:
• How to create a .NET 5 microservice from scratch
• Build and debug a .NET 5 project in VS Code
• Interact with your microservice endpoints via Open API and Postman
• Keep configuration and secrets separate from your service code
• Simplify http requests to external endpoints
• Deal with transient errors on external services
• Report the health of the service and its dependencies
• Produce logs suited for a microservice environment 

Umami is a simple, easy to use, self-hosted web analytics solution. The goal is to provide you with a friendlier, privacy-focused alternative to Google Analytics and a free, open-sourced alternative to paid solutions. Umami collects only the metrics you care about and everything fits on a single page.

You can view a live demo here

Requirements

• A server with Node.js 10.13 or newer
• A database (MySQL or Postgresql)

• Fixes issue when entering wrong credentials while trying to connect to a remote Mac build host.
• Fixed an inability to open some types of files.
• Fixed an issue resulting in a failure to add an Apple Developer account with two-step authentication.
• Fixed a crash in watchOS applications when creating GC thread.
• Fixed regression that disallowed exponential floats of the form 1e5f.
• Fixed an issue preventing opening files that are opened in external applications such as Word or Excel. 

For now, Microsoft's .NET Core milestones page shows .NET 5.0 about 53 percent complete, with 1,066 issues open and 1,216 issues closed.

Highlights of .NET 5 include:

• Developers will have more choice on runtime experiences.
• Java interoperability will be available on all platforms.
• Objective-C and Swift interoperability will be supported on multiple operating systems.
• CoreFX will be extended to support static compilation of .NET (ahead-of-time – AOT), smaller footprints and support for more operating systems. 

Over the last decade, Android's open platform has created a thriving community of manufacturers and developers that reach a global audience with their devices and apps. This has expanded beyond phones to tablets, cars, watches, TVs and more—with more than 2.5 billion active devices around the world. As we continue to build Android for everyone in the community, our brand should be as inclusive and accessible as possible—and we think we can do better in a few ways. 

• Custom tasks with default contextType via tasks.vs.json are broken in Open Folder.
• No snapshot created for C++ native code in Memory Usage tool in the Diagnostic Tools window while debugging.
• Crash in VS 16.1.0 when pressing the link "search online".
• Fixed the issue where sometimes certain features (i.e. Find All References) in LiveShare guest session do not work.
• Fixed an issue where the devenv.exe process could hang around after shutdown of Visual Studio for up to 30 seconds. 

Firefox Quantum is over twice as fast as Firefox from 6 months ago, built on a completely overhauled core engine with brand new technology stolen from our advanced research group, and graced with a beautiful new look designed to get out of the way and let you do what you do best: surf a ton of pages, open a zillion tabs, all guilt free because Firefox Quantum uses less memory than the competition