Multiple answer data in strange order when downloaded

I use Enketo and download data via Download data/advanced downloads [beta]…
When I download multiple response questions it comes in a different order to what one would expect.

See below for the order of 23 possible responses - on survey naturally numbered from _1 to _23.

Why does this happen?

How can I get downloads that are in the same order as the survey?

Regards

Order of 23 multi mention responses as downloaded

qq27_20
qq27_21
qq27_22
qq27_23
qq27_1
qq27_3
qq27_2
qq27_5
qq27_4
qq27_7
qq27_6
qq27_9
qq27_8
qq27_11
qq27_10
qq27_13
qq27_12
qq27_15
qq27_14
qq27_17
qq27_16
qq27_19
qq27_18