One LUTFIL string may include a
#MIC and/or (usually both)
#GAStokens, which will be used as a
filename template.
Once all the explicitly named LUT files are checked, the code will search
for files containing the remaining #MIC + #GAS combinations.
Example
*LUT
[need to add some usable examples]
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Description
Irregular Spectral Grid file(s)[1]
for internal forward model calculations
The irregular grid filename may contain a '*' character. After
all explicit files are read, the '*' is
expanded as the label of any microwindow which does not yet have
an irregular grid file assigned.