STP is a file format used by popular CAD software. STP contains 3-dimensional data saved in the Standard for the Exchange of Product Data (STEP, ISO 10303) file format.
The quick and simple way to handle your files is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch conversions. As you will soon realize, reaConverter will help you avoid spending countless hours trying to figure out how to convert multiple STP files as once.
JPEG JPG PNG GIF TIFF TIF BMP ICO EMF WMF AI PDF EPS PS EPI WEBP WEBPLL JP2 PCX TGA DWG DWF DXF DGN WMZ CGM DRW SHP GBR PCT MIF PLT PCL SVG WPG CIN DCX DIS HRU MTV PRC RAD PIC RLA QRT SGI XBM XPM SWF CAL FAX FITS PSD PGM JXR BPG STL APNG DDS SVGZ CG4 FLIF STEP AVIF GLB GLTF
3D 3DS 3MF AC AC3D ACC AMJ ASE ASK B3D BLEND BVH COB CSM DAE ENFF FBX GLTF GLB HMP IRR IRRMESH LWO LWS LXO MD2 MD3 MD5 MDL MS3D NDO NFF OFF OGEX PK3 PLY PRJ Q3D Q3O Q3S SCN SMD STL STEP SIB TER UC VTA X3D XGL ZGL HMB M3D MESH MOT PMX C4D