Muscle Near-Infrared Spectroscopy Processing and Analysis R package mnirs version 0.6.0 Read, process, and analyse data from muscle near-infrared spectroscopy (mNIRS) devices. Import raw data from .csv or .xls(x) files and return time-series data and metadata. Includes standardised methods for cleaning, filtering, and pre-processing mNIRS data for subsequent analysis. Also includes a custom plot theme and colour palette. Intended for mNIRS researchers and practitioners in exercise physiology, sports science, and clinical rehabilitation with minimal coding experience required. Software Depends: R (>= 4.1) Imports: cli, data.table, lifecycle, readxl, rlang, stats, tibble, tidyselect Suggests: dplyr, ggplot2, knitr, patchwork, quarto, scales, signal, testthat (>= 3.0.0), zoo Jem Arnold <jem.arnold@gmail.com> Comprehensive R Archive Network (CRAN) Jem Arnold [aut, cre, cph] (ORCID: <https://orcid.org/0000-0003-3908-9447>) MIT + file LICENSE (https://CRAN.R-project.org/package=mnirs/LICENSE) 2026-03-30 application/tgz https://CRAN.R-project.org/package=mnirs doi:10.32614/CRAN.package.mnirs