workflow: SRTM data preparation for Petrel/Gocad

hi,
I spent some time to prepare SRTM data for generating a topographic 3D model in Petrel and Gocad.
Couldn`t find a lot in this forum but finally I was successful...
Maybe someone can save time and nerves with this workflow:


1. Change coordinate system of raster data to UTM
- Import SRTM file (.tif)
- Data Management Tools > Raster > Resample (“Raster projizieren”)
- Use projected system > UTM > WGS 1984 > your area
2. Cut Raster to area of interest
- Create polygone shapefile with area
- Data Management Tools > clip raster (“Ausschneiden”)
- Safe as .tif
3. Convert raster dataset to point feature
- 3D Analyst > Conversion Tools > Raster to Point (“Raster in Punkt”)
- Safe as .shp
4. Export data as .txt (check if correct coordinate system)
- Spatial Statistic Tools > Export Feature Attribute to ASCII (“Feature-Attribut nach ASCII exportieren”)
- Activate “GRID-CODE” and save as .txt
- If necessary change , to . in text file
5. Text file should look like this

725027.486 4250944.341 1238.000
725111.765 4250944.341 1248.000
725196.044 4250944.341 1262.000
.
.
.
Import to Petrel/Gocad as XYZ