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ISM AAT
Not possible

Convert ISM to AAT

Can you convert ISM to AAT?
QUICK ANSWER
Is it possible to convert ISM to AAT?
No - not a direct conversion.

.aat is listed in db_conversions_from with software_count=1. No standard ISM-to-AAT conversion path identified; likely a database error. Impossible.

No direct path
Also to AAT: PIN

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Converting ISM to AAT

A .ISM file and a .AAT file hold different kinds of data, so there is no direct way to turn one into the other. The programs listed below can open .ISM files and may be able to export the content to a format closer to .AAT. One of them is ArchiCAD: ArchiCAD is a building information modeling (BIM) and CAD application developed by Graphisoft, used by architects for architectural design, 2D drafting, and 3D….

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

Programs that convert ISM

ArchiCAD

About these formats

.ISM InstallShield Project File

An ISM file is an InstallShield project file - the source code for building a Windows software installer. Open it with InstallShield (Revenera/Flexera); XML-mode files can be read in…

Open .ISM details →
.AAT ArcInfo Line Data

A .AAT file is associated with ArcInfo Line Data, a misc file.

Open .AAT details →