If you want to import integrated files from XDS into Pointless and Aimless, you should use Pointless to do the conversion rather than the older program Combat. This is what is done if you use the ccp4i interface task "Symmetry, Scale, Merge (Aimless)"
Combat wrongly fills in the FRACTIONCALC column in the unmerged MTZ file with ITEM_PEAK/100 which is different, and then by default Aimless will reject all observations which have a value of less than 95 in this field (unlike Scala which will accept them, as they are flagged as fully-recorded) If you _must_ use Combat (but why?), then you should add the line partials test 0.1 1.05 # accept data mislabelled by COMBAT to your script for Aimless (also possible in ccp4i) Pointless can read one or more MTZ files, XDS files (XDS_ASCII.HKL or INTEGRATE.HKL), and Saint files (.raw) and write an MTZ file suitable for Aimless Also Scalepack files and ShelX files: these are not normally suitable for scaling, but may be used for statistical analysis in Aimless with SCALES CONSTANT or ONLYMERGE options Combat may be useful for conversion of other file formats not read by Pointless, but caveat emptor Phil
