If you include the command-line argument "--report-invariant" then all of the numbers will be output with their full precision, and the column headings will be in English and will not have spaces in them.
"--report-invariant" produces a format which is intended to be easier for computer programs to handle and less easy for humans.

Similarly, when you are exporting a report from the Skyline user interface using the "File > Export > Report" menu item, if you choose "Invariant" as the Language then you will also get full precision numbers and English column headings with no spaces.

By the way, if you want Skyline to remember the formatting and apply it to the report by default then you can use the "Remember Layout" menu item in the pivot dropdown at the top of the Document Grid. If you check the "Make this the default layout" button then those formats will be applied when you export the report, although the numbers will always be full precision if you have specified "--report-invariant" because that takes precedence over formats from the Layout.

There is a little more information about remembering layouts in the Pivot Editor tip page:
https://skyline.ms/wiki/home/software/Skyline/page.view?name=PivotEditor

-- Nick