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Convert Shimadzu UVProbe .spc files to CSV (Beta)

Open Shimadzu UVProbe .spc and LabSolutions UV-Vis .vspd spectra without the Shimadzu software and export CSV, Excel or JCAMP-DX.

Opens: OPUS (.0, .1 …), SPA, SPG, SPC, WDF, SP, JWS, VSPD
Saves: CSV, XLSX, JCAMP-DX

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Spectrum files
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up to 200 MB each, 200 files max
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    Bruker OPUS (.0, .1, .2 …), Thermo OMNIC (.spa, .spg), GRAMS/Galactic (.spc), Renishaw WiRE (.wdf), PerkinElmer (.sp), JASCO (.jws) or Shimadzu UVProbe / LabSolutions (.spc, .vspd). Several files or a .zip can be combined into one table.

    Options

    OPUS files usually hold several blocks (absorbance, sample and background single channel, interferograms). Groups and maps always export every spectrum.

    Pick the comma version if your Excel uses a decimal comma (most of Europe).

    More options

    Columns: one x column and one column per spectrum. Rows: one spectrum per row (best for maps and chemometrics). Auto uses rows above 100 spectra.

    Convert between wavenumber and wavelength (not possible for Raman shift or time axes).

    Convert transmittance to absorbance (A = −log₁₀T) or back. Other spectrum types are left unchanged.

    Your files are deleted after processing.

    Shimadzu's UVProbe software, used with the UV-1800, UV-2600, UV-3600 and other UV-Vis spectrophotometers, saves spectra as .spc files, and its successor LabSolutions UV-Vis saves .vspd files. Despite the extension, a UVProbe .spc is not the GRAMS/Galactic SPC that most programs understand, which is why Origin, Excel and many spectroscopy packages refuse it. This page reads both Shimadzu formats directly and gives you CSV, Excel and JCAMP-DX files.

    How to convert a Shimadzu .spc to CSV

    1. Upload the .spc or .vspd file, several of them, or a zipped folder.
    2. Check the preview: the spectrum, the instrument, the measuring mode and when the measurement was taken.
    3. Download the CSV. It has a Wavelength (nm) column, sorted from short to long wavelengths as in UVProbe's own text export, and a column named after the measuring mode, such as Absorbance or Reflectance (%).

    What is read

    • Every digit the file holds. A UVProbe text export often keeps only three decimals; the converter writes the stored values. On 25 real files, the values agree with UVProbe's text exports to the last printed digit.
    • The measuring mode (absorbance, %T or %R) from the file itself, so a reflectance measurement with an integrating sphere is labelled as reflectance, not as absorbance.
    • Several data sets in one file. LabSolutions often stores a whole series in one .vspd; each data set becomes its own column, named as in LabSolutions (RawData-001, RawData-002 …).
    • The measurement settings: instrument, serial number, software version, scan speed, slit width, sampling interval and the rest of the method, in the preview and on a metadata sheet in the Excel file. Files from other language versions of UVProbe, such as the Chinese one, keep these names in their original language.

    The older plain-binary UVProbe .spc layout is read as well.

    Tips

    • Upload the data file, not the method: UVProbe .smd files hold only the settings.
    • For band-gap (Tauc) plots from reflectance data, start from the Excel file: the data, a chart and the instrument settings are already in one workbook.
    • Under More options you can convert the wavelength to wavenumber, or %T to absorbance.

    Other spectroscopy formats are listed on the Spectrum File Converter.

    More about what this tool reads and writes: Spectrum File Converter (OPUS, OMNIC, SPC, WDF, SP, JWS).

    More with Spectrum File Converter (OPUS, OMNIC, SPC, WDF, SP, JWS)

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