read in excel data for some bg scans 2015 and 2017

[japhir]

we didn't save the .scn files between these dates (I think in 2017 or 2018???)

[japhir]

there may be more from 2015
between april 4th
relevant for recovering the aquarium data AM
and 170316_IJK
some MZ

list of CSV files I created manually at the time:

150409_1.csv 150506_2.csv 150527.csv 1506015.csv 150630.csv 151124.csv 151125.csv 151127.csv 151207.csv 151210.csv 160224.csv 160329.csv 160413.csv 160420.csv 160421.csv 160428.csv 160429.csv 1605010.csv 160502.csv 160503.csv 160504.csv 160506.csv 160509.csv 160511.csv 160512.csv 160513.csv 160517.csv 160518.csv 160520.csv 160523.csv 160607.csv 160608.csv 160609.csv 160610.csv #160628.csv# 160628.csv 160629.csv 160706.csv 160711.csv 160714.csv 160718.csv 160719.csv 160721.csv 160722.csv 160726_Kirste 160729_Kirste 160801_AM.csv 160803_AM.csv 160810_AM.csv 160815_AM.csv 160816_AM.csv 160817_AM.csv 160818_AM.csv 160819_AM.csv 160822_AM.csv 160823_AM.csv 160824_160825 160826_AM.csv 160912_160913 160914_160915 160927_AM.csv 160928_160930 161003_AM.csv 161004_AM.csv 161017_MZ.csv 161019_MZ.csv 161020_MZ.csv 161024_MZ.csv 161026_MZ.csv 170117.csv 170119.csv 170120_AM.csv 170123_AM.csv 170125.csv 170126_170127 170201_AM.csv 170202_AM.csv 170203_AM.csv 170206_AM.csv 170208.csv 170213.csv 170214_AM.csv 170223_AM.csv 170224_AM.csv 170227_MZ_AM. 170228_AM.csv 170302_AM.csv 170303_AM.csv 170306_AM.csv 170307_AM.csv 170308_AM.csv 170310_AM.csv 170313_AM.csv 170314_mz.csv 170315_AM.csv 170316_IJK.cs 170320_MZ.csv 170321_AM.csv 170322_MZ.csv 170323_AM.csv 170324_AM.csv 170326_MZ.csv 170327_AM.csv 170328_AM.csv 170329_MZ_AM. 170330_AM.csv 170402_MZ.csv 170404_AI.csv 170410_IK.csv 170412_MZ.csv 170418_IK.csv 170425_AM.csv 170428_AM.csv 170521_AM.csv 170522_AM.csv 170523_AM.csv 170524_AM.csv 170526_AM.csv