I haven't seen the actual video that you mention in your post above, but it makes sense that if you have a device that CAN make .HEX files (i;e. "hex output" files) - it's better to use these files rather than the plain. ordinary .CSV files. This is because both .HEX and .CSV files contain the same readable data - but .HEX files also can be used to restore the module database back to the status when the file was made. So there's an added advantage when choosing the .HEX format -in market-trading speak, it's called getting a "free option")!
BUT, the advantage above necessarily assumes that the user has a device
that can make .HEX files. If the user does not have this (newer) device - the "free option" doesn't apply. Instead, if the user does not have the newer cable, the cost of the "option" is the upgrade price of the new device and the advantage of the restore function must be compared against this cost.
Now, of course the value of the restore function is an individual thing - but , it's really not worth the price to be paid because the manual process for restoring the module database is generally easy and the ALL of the information to do this is contained in the .CSV files.
However, if you want to upgrade to the newer HEX-series devices for other reasons - then I applaud your decision (you won't regret it!)
Answer is a resounding YES!!
Here is an extract from a single line of a .CSV file - otherwise called an "Admap" on this forum.
IDE02269-ENG116670-Acknowledgement signals-Akustische Rueckmeldung Signalhorn,not active ,10
Assuming your car has the newer type USD modules, the general format of the extract above is like this:
Adaptation channel name,value,Byte-length
Notice how the information in the data is separated by the commas
The manual process for restoring changes that the user has made is eloquently described by
@Jef HERE
Don