# Megan 3.2 preprocessor input files missing from website

**URL:** https://forum.cmascenter.org/t/megan-3-2-preprocessor-input-files-missing-from-website/4604
**Category:** MEGAN
**Created:** [January 2, 2024, 3:58pm UTC](https://forum.cmascenter.org/t/megan-3-2-preprocessor-input-files-missing-from-website/4604 "2024-01-02T15:58:13Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![willison.jeff](https://avatars.discourse-cdn.com/v4/letter/w/c89c15/32.png) [@willison.jeff](https://forum.cmascenter.org/u/willison.jeff)
#### Post date: [January 2, 2024, 4:20pm UTC](https://forum.cmascenter.org/t/megan-3-2-preprocessor-input-files-missing-from-website/4604/3 "2024-01-02T16:20:18Z")

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![Screenshot 2023-12-13 120823](https://canada1.discourse-cdn.com/flex027/uploads/cmas/original/2X/3/310bdd13e4fbe5297c9159c3177898d7d6e53568.png)

Here is rough flow chart showing what files need to be preprocessed for use with CMAQ. The files in green are optional unless you want a specific LAI input or want to use BDSNP for soil NO. Inputs to the python tool are in yellow boxes.

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