C:\test>perl -nE"say join',',map m[^..(\S+)], $_, map scalar <>, 1 .. 5" junk.dat
11-07-22,13:59:08,+1.304556E+01m3/h,+2.458268E-01m/s,+0057505E+1m3,+0057591E+1m3,-0000085E+1m3
11-07-22,14:14:05,+1.224623E+01m3/h,+2.310640E-01m/s,+0057505E+1m3,+0057591E+1m3,-0000085E+1m3
11-07-22,14:29:02,+1.338452E+01m3/h,+2.522141E-01m/s,+0057505E+1m3,+0057591E+1m3,-0000085E+1m3
11-07-22,14:43:58,+1.195594E+01m3/h,+2.252944E-01m/s,+0057506E+1m3,+0057592E+1m3,-0000085E+1m3
11-07-22,14:58:55,+1.185474E+01m3/h,+2.233874E-01m/s,+0057506E+1m3,+0057592E+1m3,-0000085E+1m3
11-07-22,15:13:52,+1.014633E+01m3/h,+1.911945E-01m/s,+0057506E+1m3,+0057592E+1m3,-0000085E+1m3
11-07-22,15:28:48,+1.131358E+01m3/h,+2.131899E-01m/s,+0057506E+1m3,+0057592E+1m3,-0000085E+1m3