vi2 file format than open how to change the data?

Question

Data storage

Greetings.
There is a device that fixes changes in temperature and humidity, the data is written to the memory card in vi2 format files, except for the application that comes with the kit, no matter how and nothing it turns out to open it (the file).
Can you tell me how to work with this format?

Answer 1

Judging by the fact that they sell the software separately,
it would not hurt to indicate in the question what kind of sensor, so that I don’t waste time in vain
www.testo.ru/ru/home/products/productdetails.jsp?p...
www .testo.ru/ru/home/products/productdetails.jsp?p...

Answer 2

hmm, there first 8 bytes = d0cf 11e0 google says it's Microsoft Office file signature, try it in Microsoft Access

Answer 3

The file actually opens correctly as an OLE container. (used Total7zip )
Internal structure:

org
1950\summary
1950\t17b
1950\[5]SummaryInformation
1950\channels\1\[5]Qzjleo0eYdvdbssrAaaamajhTg
1950\channels\2\[5]Qzjleo0eYdvdbssrAaaamajhTg
1950\data\schema
1950\data\timezone
1950\data\values

All data lies in 1950\data\values, orderliness and periodicity of headings are noticeable by eye.
Further, I think, it is necessary to compare the binary data with their decryption, and analyze the difference in the headers of different files.