If you are actually trying to update a UPS system, only download software from the official Schneider Electric/APC website .
The filename suggests it is a part 1 RAR archive (a split file) likely containing data related to a Local System Management (LSM) update, possibly related to APC or Schneider Electric UPS systems (Uninterruptible Power Supply). LSM16 [UPS].part1.rar
If you received this in a text message, it is likely a scam attempting to steal personal information. If you are actually trying to update a