What is a blend1 file and how do I open a blend1 file?
BLEND1 is an automatically generated backup file created by Blender, a free 3D modelling program. It stores a copy of the previously saved version of the currently opened BLEND file, and is used for recovering the previous version of the file. It can be renamed and opened normally.
Relevant blend1 file links:How to open blend1 file on Youtube
How to open blend1 file on Wikipedia
How to open blend1 file on Microsoft.com