# Creating r-file?

**URL:** <https://community.geodynamics.org/t/creating-r-file/860>\
**Category:** SW4\
**Created:** [October 23, 2019, 8:03pm UTC](https://community.geodynamics.org/t/creating-r-file/860 "2019-10-23T20:03:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mlabuta](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/mlabuta/32/330_2.png) [@mlabuta](https://community.geodynamics.org/u/mlabuta)\
**Post date:** [October 23, 2019, 8:03pm UTC](https://community.geodynamics.org/t/creating-r-file/860/1 "2019-10-23T20:03:08Z")

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Hello,  
I would like to ask, if there is some software which would simplify the creation process of the r-file. So far I tried to create simple blocks of material properties with headers in Matlab but I do not see how to create more sophisticated models. So I am searching for suggestions what is a suitable software for modelling geological subsurface (rho, vp, vs), parsing it with topography (adding dummy -999 values above the topography) and exporting it as a column of values which I could reshape and add a header in Matlab.  
I am sorry if this question is not directly related to sw4 software issues, if requested I will close the topic.  
Thank you very much for all your suggestions.