File used to generate an eBook for the Sony Portable Reader, an eBook reading device; contains source data used to create a Sony "BroadBand eBook" (BBeB); saved in an XML format that describes eBook properties and contents. LRS files are used to generate .LRF, which can be used by a Sony Portable Reader. LRS files may be generated back from LRF files.
The lrs file extension is associated with Lazarus, a rapid application development environment for free pascal, developed by the Lazarus Team.
The LRS file extension is associated with Daylon Leveller, a terrain/heightfield modeling program, developed by Daylon Graphics Ltd..