# With USDCAT with a CMD : - cd C:\Program Files\Side Effects Software\Houdini 20.5.445\bin - usdcat [OPTIONS] inputFiles... exemple : - usdcat -o D:\PROJECT\workshop_ADEPT\03_Production\Assets\Character\ADP_char_spaceMarine_lod0\Export\usdlookDev\v0011\ADP_char_spaceMarine_lod0_usdlookDev_v0011.usda D:\PROJECT\workshop_ADEPT\03_Production\Assets\Character\ADP_char_spaceMarine_lod0\Export\usdlookDev\v0011\ADP_char_spaceMarine_lod0_usdlookDev_v0011.usdc # BATCH Convert Using HYTHON and USDCAT **REPO** : https://github.com/mushogenshin/mk_usdcat_all The tool is very simple to use. First take a look at the Prerequisites line edit in the UI and make sure the tool know where to look for **hython** and **usdcat**, both in the "**bin**" folder within your Houdini installation folder. [](https://github.com/mushogenshin/mk_usdcat_all/blob/master/img/ui_prerequisites.jpg) Most of the time you would want to perform **usdcat** in bulk. So drop the folder containing all the USD files to the second line edit (see below) to batch convert _all_ USD files found within that folder. You can also copy and paste the link to that folder there. Then from that line edit press Enter to start the batch conversion process.  [](https://github.com/mushogenshin/mk_usdcat_all/blob/master/img/ui_drop_folder_to_batch_usdcat.gif) **Hython** will then summon **usdcat** to perform conversion between USD formats, file by file. This might take a while, firstly of course depending on how many USD files there are in the specified folder, and also how heavy they are, but secondly due to the fact that **hython** also needs to verify your Houdini license each time. Behold! Below is a screengrab of the resulted `Kitchen_set` in ASCII: [](https://github.com/mushogenshin/mk_usdcat_all/blob/master/img/conversion_test_kitchen_set_screengrab.jpg) There will be a generated log file that details how much time it takes for each conversion job.  [](https://github.com/mushogenshin/mk_usdcat_all/blob/master/img/log_file_conversion_time.gif) After the conversion is complete with every USD file in the folder (you can tell by looking at the progress bar in the UI), you can use the wonderful [usdview](https://graphics.pixar.com/usd/docs/USD-Toolset.html#USDToolset-usdview) that is also shipped with Houdini Solaris to view and verify the results.