read in mzML files instead of fid/acqu proprietary format

[cpauvert]

File format conversion can be made with the compass software, see https://github.com/rformassspectrometry/RforMassSpectrometry.org/issues/18#issuecomment-1834408893

[cpauvert]

Export works only for one spectrum at a time though....

The Export\ Raw Spectrum as mzXML option offers the export of the unprocessed spectrum in the mzXML format. A dialog appears to specify the file name and location. If you want to export more than one spectrum at a time into the mzXML format, the Bruker program CompassXport will be a good choice. It is available for download from our homepage. https://researchservices.pitt.edu/sites/default/files/flexAnalysis%20User%20Manual.pdf p.31

• Need to register to browse and download software on Bruker page
• No CompassXport available
• Looking up online yields a repo that points to the fact that the software is not available as well as not supported by Bruker as well.