Vim swap file
From Just Solve the File Format Problem
Vim swap file is a temporary file created by the open source Vim text editor, when editing a file. The file's name typically begins with ".", and ends with ".swp". The file is normally deleted when editing is complete, but may be left behind in the event of a crash or other abnormal termination.
Its main purpose is to periodically record unsaved changes made to the file. It also serves as a lock file. The file format is undocumented, and not necessarily portable.
Identification
Files begin with ASCII "b0VIM
".
Links
- Vim website
- Vim documentation related to swap files
- ls.swp - A script to partially decode swap files. Includes some notes on the format.