LETTER Converter

Extract text from LETTER files

Select File
Drop or upload your .LETTER file

Online File Converter

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How to extract text from your LETTER file

Click the "Select File" button above, and choose your LETTER file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.

Convert LETTER to another file type

To convert your LETTER file to another format, you need Unix Mail or other Text software.

Convert a file to LETTER

To convert other file formats to the "System Artifact" file type, you need software like Unix Mail or a similar tool.

About LETTER files

The .letter extension is a legacy identifier most frequently associated with unsent email messages on Unix-based systems (often named dead.letter) or configuration states for Farstone Recovery Manager.

If you have encountered a dead.letter file, it is essentially a plain text dump created when a mail client (like the command-line mail utility) is interrupted or fails to send a message. While the data inside is human-readable, the .letter extension is not natively recognized by modern operating systems like Windows or macOS, forcing you to manually select a text editor every time you try to open it.

The second common variant is a configuration file for Farstone DriveClone or Recovery Manager. These are proprietary binary or structured text files used to save system restore points. The main issue here is vendor lock-in: these files are useless without the specific, often outdated, Farstone software installed. They cannot be "opened" in a traditional sense.

Conversion Recommendations:

For Unix Files: Convert to TXT to make the file universally accessible or PDF to archive the unsent message permanently.
For Archiving: If the file contains text data you want to edit, converting to DOCX (Word) allows for better formatting control than raw text editors.

Convert.Guru analyzes your LETTER file, detects the exact format, and lets you read the text inside.

Users also converted ETLERR, PDF, LOG, ANN and QIC files.

FAQ

If you want to convert LETTER file to PDF, TMP, TEMP, CACHE, LOG, BAK, OLD, NEW, PART, DOWNLOAD, CRDOWNLOAD or LOCK, you can use Unix Mail or similar software from the "Unsent Email Storage" category. In the File menu, look for Save As… or Export….

To convert DEVICE, CACHE, SOCK, SYMLINK, PID, MOUNT, FIFO, LOG, PIPE, TMP, JUNCTION or TEMP files to LETTER, try Unix Mail or another comparable tool in the "Unsent Email Storage" category.

The LETTER Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our LETTER converter.