Supported Formats

Supported formats

Extension	What it is	How it opens
.eml	RFC 822 / MIME email (Thunderbird, Apple Mail, "save as" from most clients)	Parsed with mail-parser
.msg	Outlook message (OLE compound file / MAPI)	InLook's own MAPI reader
.oft	Outlook template — same container as .msg	Same reader as .msg

InLook detects the format by the file's contents (the compound-file signature), not just its extension, so a mislabeled file still opens correctly.

What is shown

For every format: sender, To/Cc, subject, date, the message body (HTML preferred, else plain text), inline cid: images, and the attachment list (with save / open actions).

Known limitation: RTF-only .msg bodies

A few very old Outlook messages store their body only as compressed RTF, with no HTML or plain-text copy. InLook shows those messages' headers and attachment list with an empty body. Modern .msg files always include an HTML or text body and render fully.