Theres hundreds of these questions probably, or i'm just dumb and somehow can't open them. When I open a .BLEND file it just says Windows doesen't know this error. And I have blender installed. Is there some kind of addon i needed to check or something? Sorry for this dumb question. And when i just open blender and pick the file and drag it to blender, i see nothing. This is an intro template BTW.
You could check Windows registry using:
regedit and manipulate these entries:
In case none of the entries are found in the registry you could save them in a text file e.g. "blend.reg" and import the settings by regedit.
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\blendfile] @="Blender File" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\blendfile\DefaultIcon] @="\"C:\\Program Files\\Blender Foundation\\Blender\\blender.exe\", 1" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\blendfile\shell] [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\blendfile\shell\open] [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\blendfile\shell\open\command] @="\"C:\\Program Files\\Blender Foundation\\Blender\\blender.exe\" \"%1\""
I have been having a similar problem and I have finally figured out a solution. If you are using Windows, go to the .BLEND file you want to open and put it up in a smaller window. Left hold on the file and drag over to the Blender icon program on your desktop and click "Open in Blender." It should open just fine.