Files with lss suffix can be found as special source script file type from Lotus Notes by IBM. Also used by Lotus Domino.

There is one other file type using
the LSS file extension!

empty icon.lss - Legato spreadsheet

Detailed description

Software that open lss file

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LSS file extension - LotusScript source code file

What is lss file? How to open lss files?

File type specification:

Source code and script file type icon Source code and script file type

File extension lss is associated with Lotus Notes, a multi-platform client for Lotus Domino and Lotus Notes suites, developed by IBM.

An lss file contains source code scripts written in LotuScript programming language used by Lotus Notes. LSS is one of the internal formats used by Domino Designer.

Note: Rarely lss file extension is also used for LSS16 Format Image, a Linux splash screen format.

The default software associated to open lss file:

IBM Notes (Lotus Notes) icon

IBM logoIBM Notes (Lotus Notes)  Microsoft Windows software

Company or developer:

IBM Notes (formerly Lotus Notes) is a multi-user client-server cross-platform application runtime environment for Lotus Domino/Notes suite. It can be used for many applications as well as for internal communication collaborative applications, including e-mails, calendaring, PIM, instant messaging, Web browsing, and a variety of feature-rich custom applications. It can be used to access both local- and server-based applications and data.

The current version of IBM Notes is 9.

IBM logoLotus Domino Designer  Microsoft Windows software

Company or developer:

IBM Lotus Domino Designer is an Eclipse-based rapid application development tool for building collaborative Web 2.0 applications that run on Lotus Notes and Domino

Help how to open:

It seems that .lss files can probably be viewed in any text editor. There is also a program called Lotus Domino Designer, which might be able to work with *.lss files.

How to convert:

A conversion of any kind seems to be unlikely, however, as this file type can be edited using

List of software applications associated to the .lss file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open lss file, edit lss file, convert lss file, view lss file, play lss file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting lss files.

Software that open lss file - LotusScript source code file

Programs supporting the exension lss on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Lotus Domino Designer for open lss file action.

Microsoft Windows:

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