.PLN

.PLN file extension

This is the basic program to work with .PLN extension

ArchiCAD

ArchiCAD ArchiCAD Solo Project

The program works with the following extensions: fps, pea, ism, tpl, lcl, sps, lmp, plc, pla, bpe, pln, a3d, pne, mod, spr, ppe, wps, rps, rpr, gsm, rsm, gps, 2dl, bpc, plp, 2le, ppa, bep, bpn, pca, bpp, cpr, dor, pae, fpr, mde and -bce

.PLN extension is also supported by the following programs:

Agilix GoBinder Lite

Agilix GoBinder Lite GoBinder database file

Home Plan Pro

Home Plan Pro Home Plan Pro File

Eeasily draw good-quality, straightforward designs.
MasterCook

MasterCook MasterCook MealPlan

MasterCook is a handy application that includes an extensive list of recipes.
FranklinCovey TabletPlanner

FranklinCovey TabletPlanner TabletPlanner database file

SilkTest

SilkTest SilkTest Plan File

Dodge View

Dodge View Dodge Plan Files

MasterCook Deluxe Edition

MasterCook Deluxe Edition MasterCook MealPlan

SmartCUT.

SmartCUT. SmartCUT Cutting Plan File

Smart2DCutting is a professional cutting software package designed for panel cutting optimization.
FranklinCovey PlanPlus for Windows

FranklinCovey PlanPlus for Windows PlanPlus database file

Twiddlebit Plan for Windows

Twiddlebit Plan for Windows Twiddlebit Plan Document

Plan is a project planner which is similar and compatible with,Microsoft Project.
Spaceman Professional

Spaceman Professional Spaceman Planogram

With Spaceman Professional you can replicate virtually any retail environment.
RocPlane

RocPlane RocPlane Document

It is created for performing planar rock slope stability analysis and design.
Espri

Espri ESPRI Media Analysis

Gnumeric Spreadsheet

Gnumeric Spreadsheet Gnumeric Spreadsheet

Gnumeric is an excellent open-source spreadsheeet application.