Click the "Select File" button above, and choose your AT2 file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert AT2 to another file type
To convert your AT2 file to another format, you need SeismoSignal or other Data software.
Convert a file to AT2
To convert other file formats to the "Seismic Acceleration Data" file type, you need software like SeismoSignal or a similar tool.
About AT2 files
The .AT2 file extension is most frequently associated with Acceleration Time History data from the PEER NGA (Pacific Earthquake Engineering Research Center) Strong Motion Database. These ASCII text files contain seismic ground motion records used by structural engineers and seismologists to analyze earthquake effects. While the data is plain text, the files utilize specific header formats and column structures optimized for specialized software like SeismoSignal. This creates a barrier for users attempting to perform quick analysis in standard tools like Microsoft Excel, as the raw data often requires complex parsing or manual header removal to align columns correctly. Additionally, this extension is used for Canadian Corporate Tax Returns by Intuit ProFile and Austrian address exchange data, creating significant ambiguity. To make this data accessible for reports or analysis, users typically convert the seismic data to CSV or XLSX, and tax/address records to PDF for archiving.
Convert.Guru analyzes your AT2 file, detects the exact format, and lets you read the text inside.
If you want to convert AT2 file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use SeismoSignal or similar software from the "Seismic Data Storage" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to AT2, try SeismoSignal or another comparable tool in the "Seismic Data Storage" category.
The AT2 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 AT2 converter.