# Moving Files Cross Platform

By far the most common cross-platform challenge is the movement of files between PC and Mac. Here's the info you need to successfully move files across platform.

Moving model files from Mac to PC:

1. Give the file the appropriate extension:

.stm |  | STELLA
.str |  | STELLA Commercial Runtime
.itm |  | ithink
.itr |  | ithink Commercial Runtime

2. Move the file to your PC. Use removable media, email, FTP or whatever.

Moving model files from PC to Mac:

1. Make sure you have a utility on the Mac that can assign type and creator information to your model files. Resedit (a programmer's utility), File Buddy (a utility that's available from a variety of download sites), and File Exchange (a control panel that is part the MacOS) all have this capability.

2. Configure the utility to map the model extension to the Macintosh Type and Creator information, using the table below.

ithink |  | Mac File Information
Type: |  | ithm
Creator: |  | ithn

STELLA |  | Mac File Information
Type: |  | STM2
Creator: |  | STL2

ithink Commercial Runtime |  | Mac File Information
Type: |  | ithr
Creator: |  | ithq

STELLA Commercial Runtime |  | Mac File Information
Type: |  | STR2
Creator: |  | STQ2

3. Bring the model from your PC to Mac. Typically this works best using File Exchange, and PC-formatted removable media.

Alternately, use the conversion utilitiy application we have provided as part of your software package. You'll find this application in the tools folder in your software installation. On the Mac, simply drag and drop the PC-format model file onto the utility. The utility will walk you the process of converting the file to Mac format.

Note: If you are using FTP or email attachments to move files from one machine to another, it's a good idea to compress your files using .zip or stuffit compression technology. Doing so will minimize the potential that files will become corrupted in transit.