How to install liveries to Microsoft Flight Simulator?
Download any livery of your choice on our website. Most liveries support a simple drag-and-drop installation method. In this case, you just need to drag-and-drop the downloaded livery into your Community folder. Nowadays this should be almost every livery you find. Click here if you don't know where your Community Folder is.
Locate your Microsoft Flight Simulator installation folder. This is the folder where Microsoft Flight Simulator game data is primarily stored.
You need to locate and open the folder named Community. Check this guide, if you can't find your Community folder!
Extract the folder contents of the downloaded livery into your Community folder.
Start the game and your liveries should be available!
We are going to download Lufthansa Livery - Ultra Resoution by Operatorland468. Once the download finished, we open the ZIP file by simply double-clicking it.
Attention: It may be that you download a livery that has been compressed and is in a RAR archive instead of a ZIP archive. To open RAR archives (.rar files) you need an extra tool - for example 7-Zip or WinRAR. Both are free. If you haven't installed one of them, go ahead and after that you can click on the downloaded .rar file with a Right-Click and choose "Extract here" or "Open Archive".
Then, simply drag and drop the contents of the archive into your Community folder mentioned above. Once you put the downloaded livery inside the Community folder, the path of your livery installation should look like below. Remember, this is just an example, so the name of the livery-folder can be different based on which livery you downloaded. In our case it is OperatorLand468-livery-a320NeoDLH.
Once you open this folder, there should be 3 items inside. You're ready to go, restart the sim and select the added livery! Repeat those steps with any livery you like.

There are some useful tutorials on YouTube for example, showing you how to install liveries or other add-ons step by step. For example the one below.
Overview
Locate your Microsoft Flight Simulator installation folder. This is the folder where Microsoft Flight Simulator game data is primarily stored.
You need to locate and open the folder named Community. Check this guide, if you can't find your Community folder!
Extract the folder contents of the downloaded livery into your Community folder.
Start the game and your liveries should be available!
Example
We are going to download Lufthansa Livery - Ultra Resoution by Operatorland468. Once the download finished, we open the ZIP file by simply double-clicking it.
Attention: It may be that you download a livery that has been compressed and is in a RAR archive instead of a ZIP archive. To open RAR archives (.rar files) you need an extra tool - for example 7-Zip or WinRAR. Both are free. If you haven't installed one of them, go ahead and after that you can click on the downloaded .rar file with a Right-Click and choose "Extract here" or "Open Archive".
Then, simply drag and drop the contents of the archive into your Community folder mentioned above. Once you put the downloaded livery inside the Community folder, the path of your livery installation should look like below. Remember, this is just an example, so the name of the livery-folder can be different based on which livery you downloaded. In our case it is OperatorLand468-livery-a320NeoDLH.
{MSFS-Path}/Community/OperatorLand468-livery-a320NeoDLH
Once you open this folder, there should be 3 items inside. You're ready to go, restart the sim and select the added livery! Repeat those steps with any livery you like.

YouTube Tutorials
There are some useful tutorials on YouTube for example, showing you how to install liveries or other add-ons step by step. For example the one below.
Updated on: 15/03/2023
Thank you!