Like a file recovered from a hard drive, Manhattan’s Park Row — the longtime home of the J&R electronics empire — is coming back to life, this time as luxury housing.

A soaring new condo, 25 Park Row, is going up on the block across from City Hall that J&R Music and Computer World largely controlled for decades, but which has been quiet since the retailer shuttered its last store in 2014.

And with the arrival of the 50-story, 110-unit spire, which joins other apartment projects on the block, a residential enclave has overtaken another city business district.

“Before, you used to go down to Park Row for one reason, and that was to go to J&R,” said Ariel Cohen, a broker with Douglas Elliman Real Estate who frequently works in the neighborhood but isn’t affiliated with 25 Park Row. “But now the entire skyline is changing with all these beautiful new buildings.”