Extract text from Android Bluetooth logs (LAST)
To convert LAST logs to another format, you need Wireshark or other System software.
To convert other file formats to the "Debug Log" file type, you need software like Wireshark or a similar tool.
A .LAST file is typically a "rotated" or backup log file generated by the Android operating system, specifically representing a Bluetooth HCI snoop log. When the active logging file (btsnoop_hci.log) reaches its file size limit, the system automatically renames it to .last to preserve the previous capture data before creating a new log.
The Problem: The biggest hurdle with .LAST files is that the extension describes the file's status (it was the last one), not its content. In this specific Android context, the file contains binary packet data, not plain text. Users attempting to open it with a standard text editor like Notepad++ will see unreadable garbled characters. Additionally, Windows and macOS do not natively associate this extension with any application, leading to generic "Windows cannot open this file" errors.
The Solution: To analyze the Bluetooth traffic commands and events contained within, the file must be treated as a packet capture. The industry-standard tool for this is Wireshark. However, for easier reporting, filtering in Excel, or sharing with non-developers, you should convert the .LAST file to CSV (Comma Separated Values) or TXT. For compatibility with other network analysis tools, converting it to the standard PCAP or PCAPNG format is the best practice.
Convert.Guru analyzes your LAST file, detects the exact format, and lets you read the text inside.
Users also converted LASTMEMORY, SNOOP, PCAP and CAP files.
If you want to convert LAST file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Wireshark or similar software from the "Android Bluetooth Snoop Log" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to LAST, try Wireshark or another comparable tool in the "Android Bluetooth Snoop Log" category.
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 LAST converter.