How to import file containig float and strings

My file I want to import contain both floats and strings. Below such line:

maciej-test.type=pomiary date=2019-02-10,time=00:19:56,MAC-Eth=b8:27:eb:60:58:d7,IP-Eth=192.168.1.10,MAC-WiFi=b8:27:eb:35:0d:
82,IP-WiFi=192.168.100.80,On-time=190208_084928,ADC-1=548,ADC-2=1584,ADC-3=2042,ADC-4=340,Temp-spare=0,Hum-spare=0,INT-stat=O
N,UV-stat=OFF,CPU-temp=43.4,PPM25-spare=0,PPM10-spare=0,PT100=0,PPM-1=0,PPM-25=2,PPM-10=2,Temp=20.1,Baro=1002.75,Hum=53.05,VO
C=0,AQI-name=0,AIQ-num=0,VOC-OK=0,SO2=-323 1549754396

The file consist of 100 such lines. When I try to import it, en error occurs:

{“error”:"unable to parse
or
: invalid number\nunable to parse

How can I import from one file both floats and strings? Is it file syntax related problem?
Any idea what to do?