Kinetics
.KD
Export absorbance changes over time, subtracting absorbance at a reference wavelength.
Spectrophotometer data, ready for Excel.
SpectrExcel turns raw instrument output into analysis-ready reports in a few clicks.
Other downloads
From measurements to Excel files
Choose a workflow, add instrument files, and export an Excel file ready for analysis. Optionally include an info sheet with source hashes, analysis settings, and processing steps. It starts off, remembers your last choice, and follows the app's language. Retain the original inputs for reproducibility. Learn about export details.
Preview charts while you configure any assay. Choose the optional parameters + preview layout for a live chart beside your inputs and parameters. Choose your layout.
Binding
.SD / .txt
Compare absorbance spectra from binding or titration experiments and export them for further analysis.
Spectra Family
.KD
Export spectra recorded over time. Charts show every second spectrum; tables include all spectra.
- Instrument files
.KD.SD.txt- Excel files
.xlsxMeasurement tables and comparison charts.
Process measurements locally. Keep data private.
SpectrExcel runs on your computer: no account and no upload required. Measurement files stay under your control, and the project is open source.
Download SpectrExcel
Choose a package directly or review the latest release notes.
Windows releases are unsigned, and executable signing is not currently planned. Windows or antivirus software may warn about or block unsigned executables. See the Windows executable signing notes for release details.