Content Patcher version, See readme.txt inside the zip for install details.

I would still recommend the replacement file version since the assets won't get loaded 2 times. But if the replacement file don't work for you try this version.

Portraiture version.For people who prefer to install them in Portraiture.

See readme.txt inside the zip for install details.

Replacement file version.
Drag the "[ME] Museum Expansion" folder from my Zip into the Stardew Valley\Mods folder to overwrite the "[ME] Museum Expansion" folder in it.