The following is a list of the file formats that can currently be imported into HEC RAS Mapper:

VRT : Virtual Raster

GTiff : GeoTIFF

NITF : National Imagery Transmission Format

RPFTOC : Raster Product Format TOC format

ECRGTOC : ECRG TOC format

HFA : Erdas Imagine Images (.img)

SAR_CEOS : CEOS SAR Image

CEOS : CEOS Image

JAXAPALSAR : JAXA PALSAR Product Reader (Level 1.1/1.5)

GFF : Ground-based SAR Applications Testbed File Format (.gff)

ELAS : ELAS

AIG : Arc/Info Binary Grid

AAIGrid : Arc/Info ASCII Grid

GRASSASCIIGrid : GRASS ASCII Grid

SDTS : SDTS Raster

DTED : DTED Elevation Raster

PNG : Portable Network Graphics

JPEG : JPEG JFIF

MEM : In Memory Raster

JDEM : Japanese DEM (.mem)

GIF : Graphics Interchange Format (.gif)

BIGGIF : Graphics Interchange Format (.gif)

ESAT : Envisat Image Format

BSB : Maptech BSB Nautical Charts

XPM : X11 PixMap Format

BMP : MS Windows Device Independent Bitmap

DIMAP : SPOT DIMAP

AirSAR : AirSAR Polarimetric Image

RS2 : RadarSat 2 XML Product

PCIDSK : PCIDSK Database File

PCRaster : PCRaster Raster File

ILWIS : ILWIS Raster Map

SGI : SGI Image File Format 1.0

SRTMHGT : SRTMHGT File Format

Leveller : Leveller heightfield

Terragen : Terragen heightfield

GMT : GMT NetCDF Grid Format

netCDF : Network Common Data Format

ISIS3 : USGS Astrogeology ISIS cube (Version 3)

ISIS2 : USGS Astrogeology ISIS cube (Version 2)

PDS : NASA Planetary Data System

TIL : EarthWatch .TIL

ERS : ERMapper .ers Labelled

JPEG2000 : JPEG-2000 part 1 (ISO/IEC 15444-1)

L1B : NOAA Polar Orbiter Level 1b Data Set

FIT : FIT Image

GRIB : GRIdded Binary (.grb)

MrSID : Multi-resolution Seamless Image Database (MrSID)

JP2MrSID : MrSID JPEG2000

MG4Lidar : MrSID Generation 4 / Lidar (.sid)

RMF : Raster Matrix Format

WCS : OGC Web Coverage Service

WMS : OGC Web Map Service

MSGN : EUMETSAT Archive native (.nat)

RST : Idrisi Raster A.1

INGR : Intergraph Raster

GSAG : Golden Software ASCII Grid (.grd)

GSBG : Golden Software Binary Grid (.grd)

GS7BG : Golden Software 7 Binary Grid (.grd)

COSAR : COSAR Annotated Binary Matrix (TerraSAR-X)

TSX : TerraSAR-X Product

COASP : DRDC COASP SAR Processor Raster

R : R Object Data Store

MAP : OziExplorer .MAP

PNM : Portable Pixmap Format (netpbm)

DOQ1 : USGS DOQ (Old Style)

DOQ2 : USGS DOQ (New Style)

ENVI : ENVI .hdr Labelled

EHdr : ESRI .hdr Labelled

GenBin : Generic Binary (.hdr Labelled)

PAux : PCI .aux Labelled

MFF : Vexcel MFF Raster

MFF2 : Vexcel MFF2 (HKV) Raster

FujiBAS : Fuji BAS Scanner Image

GSC : GSC Geogrid

FAST : EOSAT FAST Format

BT : VTP .bt (Binary Terrain) 1.3 Format

LAN : Erdas .LAN/.GIS

CPG : Convair PolGASP

IDA : Image Data and Analysis

NDF : NLAPS Data Format

EIR : Erdas Imagine Raw

DIPEx : DIPEx

LCP : FARSITE v.4 Landscape File (.lcp)

GTX : NOAA Vertical Datum .GTX

LOSLAS : NADCON .los/.las Datum Grid Shift

NTv2 : NTv2 Datum Grid Shift

CTable2 : CTable2 Datum Grid Shift

ACE2 : ACE2

SNODAS : Snow Data Assimilation System

ARG : Azavea Raster Grid format

RIK : Swedish Grid RIK (.rik)

USGSDEM : USGS Optional ASCII DEM (and CDED)

GXF : GeoSoft Grid Exchange Format

HTTP : HTTP Fetching Wrapper

NWT_GRD : Northwood Numeric Grid Format .grd/.tab

NWT_GRC : Northwood Classified Grid Format .grc/.tab

ADRG : ARC Digitized Raster Graphics

SRP : Standard Raster Product (ASRP/USRP)

BLX : Magellan topo (.blx)

GeoRaster : Oracle Spatial GeoRaster

Rasterlite : Rasterlite

SAGA : SAGA GIS Binary Grid (.sdat)

KMLSUPEROVERLAY : Kml Super Overlay

XYZ : ASCII Gridded XYZ

HF2 : HF2/HFZ heightfield raster

PDF : Geospatial PDF

OZI : OziExplorer Image File

CTG : USGS LULC Composite Theme Grid

E00GRID : Arc/Info Export E00 GRID

ZMap : ZMap Plus Grid

NGSGEOID : NOAA NGS Geoid Height Grids

MBTiles : MBTiles

IRIS : IRIS data (.PPI, .CAPPi etc)