PC.net

.skindex

File Type Generic IconMail Index File
Rank ★ ★ ☆  Average
Description

Stores indexing data that the Mac OS X Mail program uses to make searching faster; usually named mbox.SKindex and has a related file named mbox.SKindex.isValid in the same directory

Open With
macOS

IconApple Mail

Updated 2007
Information from the PC File Extensions Reference
https://pc.net/extensions/file/skindex
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