Read Spectroscopic Data from Bruker OPUS Binary Files R package opusreader2 version 0.6.8 Reads data from Bruker OPUS binary files of Fourier-Transform infrared spectrometers of the company Bruker Optics GmbH & Co. This package is released independently from Bruker, and Bruker and OPUS are registered trademarks of Bruker Optics GmbH & Co. KG. <https://www.bruker.com/en/products-and-solutions/infrared-and-raman/opus-spectroscopy-software/latest-release.html>. It lets you import both measurement data and parameters from OPUS files. The main method is `read_opus()`, which reads one or multiple OPUS files into a standardized list class. Behind the scenes, the reader parses the file header for assigning spectral blocks and reading binary data from the respective byte positions, using a reverse engineering approach. Infrared spectroscopy combined with chemometrics and machine learning is an established method to scale up chemical diagnostics in various industries and scientific fields. Software Suggests: knitr, rmarkdown, testthat (>= 3.0.0), progressr, mirai (>= 2.5.0) Philipp Baumann <baumann-philipp@protonmail.ch> Comprehensive R Archive Network (CRAN) Philipp Baumann [aut, cre] (ORCID: <https://orcid.org/0000-0002-3194-8975>), Thomas Knecht [aut], Pierre Roudier [aut] (ORCID: <https://orcid.org/0000-0001-7431-2603>), spectral-cockpit.com [cph, fnd] MIT + file LICENSE (https://CRAN.R-project.org/package=opusreader2/LICENSE) 2026-02-03 application/tgz https://CRAN.R-project.org/package=opusreader2 doi:10.32614/CRAN.package.opusreader2 en-US