Extract text from CAP files
To convert your CAP file to another format, you need Wireshark or other Data software.
To convert other file formats to the "Network Traffic Log" file type, you need software like Wireshark or a similar tool.
The .CAP extension is a multi-format container primarily associated with Network Packet Capture files generated by sniffer tools like Wireshark and tcpdump. These binary files store raw data packets captured from a network interface, essential for analyzing traffic and debugging protocols. However, the format is often considered legacy compared to the modern PCAP or PCAPNG standards, and its raw binary nature makes it impossible to read without specialized software. Users frequently need to convert these captures into human-readable formats like CSV, XML, or TXT to perform statistical analysis in spreadsheets or import data into logging systems.
Another significant use of the .CAP extension is for ASUS BIOS Update capsules. These are system files used to update the firmware on ASUS motherboards via the UEFI BIOS Utility. A common point of confusion - and friction - is that these files cannot be "opened" in Windows; they often require specific renaming conventions (e.g., via the BIOS Renamer tool) before the motherboard's EZ Flash utility can recognize them. Additionally, .CAP files may represent music scores created by Capella software or scientific experiment data from PASCO Capstone. For music scores, the proprietary format limits sharing, making conversion to PDF (for printing), MIDI (for playback), or MusicXML (for editing in other software) highly desirable. For PASCO data, users often need to export results to CSV for academic reporting.
Convert.Guru analyzes your CAP file, detects the exact format, and lets you read the text inside.
Users also converted PCAP, NETXML, HCCAP, ZIP, PCAPNG, OIF, ADV, CAB, HC22000, PDF, BIN, CRDOWNLOAD and DMP files.
If you want to convert CAP file to SMALL, PCAP, BIN, PCAPNG, CSV, JSON, XML, YAML, YML, TOML, INI or CFG, you can use Wireshark or similar software from the "Network Packet Capture" 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 CAP, try Wireshark or another comparable tool in the "Network Packet Capture" 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 CAP converter.