This is the 2028th most frequent Russian word.
электронном
The Russian word "электронном" is the prepositional case, singular masculine or neuter form of "электронный," meaning "electronic."
Here, 'электронном' ('electronic') describes 'формате' ('format'), serving as an adjective indicating the nature or medium of the book format.
Я прочитал эту книгу в электронном формате.
I read this book in electronic format.
In this sentence, 'электронном' ('electronic') modifies 'мире' ('world'), describing a world characterized by electronic nature or assets.
В современном электронном мире информация быстро распространяется.
In the modern electronic world, information spreads quickly.
The word 'электронном' ('electronic') qualifies 'архиве' ('archive'), indicating the digital medium in which the file is stored.