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    $\begingroup$ Try: (Mean[Import[#,"Data"]][[All,2]])& /@ FileNames[...] $\endgroup$ Commented Apr 3, 2023 at 16:16
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    $\begingroup$ Consider this contrived example: (t1 = Table[ConstantArray[i, 10], {i, 15}]) // TableForm . Each column comes from one file. Then Mean /@ t1 would give you the mean across each row at a time that (I think) you want. $\endgroup$ Commented Apr 3, 2023 at 16:33
  • $\begingroup$ Amazing, thank you! Is there a way to drop the first row of each file before averaging? Throwing a Drop[...,1] in that command somewhere? $\endgroup$ Commented Apr 3, 2023 at 16:35
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    $\begingroup$ Mean /@ Rest@t1 will drop the first row. $\endgroup$ Commented Apr 3, 2023 at 16:36
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    $\begingroup$ try also Mean[Rest@Import[#, {"Data", All, 2}] & /@ files] (where files is your list of file names) $\endgroup$ Commented Apr 3, 2023 at 18:11