diff --git a/README.md b/README.md
index 05dd8de..cd8ef6f 100644
--- a/README.md
+++ b/README.md
@@ -23,12 +23,12 @@ Build instructions can be found here: https://github.com/miek/inspectrum/wiki/Bu
 ## Input
 inspectrum supports the following file types:
  * `*.sigmf-meta, *.sigmf-data` - SigMF recordings
- * `*.cf32`, `*.cfile` - Complex 32-bit floating point samples (GNU Radio, osmocom_fft)
- * `*.cf64` - Complex 64-bit floating point samples
- * `*.cs32` - Complex 16-bit signed integer samples (SDRAngel)
- * `*.cs16` - Complex 16-bit signed integer samples (BladeRF)
- * `*.cs8` - Complex 8-bit signed integer samples (HackRF)
- * `*.cu8` - Complex 8-bit unsigned integer samples (RTL-SDR)
+ * `*.cf32`, `*.fc32`, `*.cfile` - Complex 32-bit floating point samples (GNU Radio, osmocom_fft)
+ * `*.cf64`, `*.fc64` - Complex 64-bit floating point samples
+ * `*.cs32`, `*.sc32`, `*.c32` - Complex 32-bit signed integer samples (SDRAngel)
+ * `*.cs16`, `*.sc16`, `*.c16` - Complex 16-bit signed integer samples (BladeRF)
+ * `*.cs8`, `*.sc8`, `*.c8` - Complex 8-bit signed integer samples (HackRF)
+ * `*.cu8`, `*.uc8` - Complex 8-bit unsigned integer samples (RTL-SDR)
  * `*.f32` - Real 32-bit floating point samples
  * `*.f64` - Real 64-bit floating point samples (MATLAB)
  * `*.s16` - Real 16-bit signed integer samples
diff --git a/src/inputsource.cpp b/src/inputsource.cpp
index f1a1453..df9b1b6 100644
--- a/src/inputsource.cpp
+++ b/src/inputsource.cpp
@@ -362,6 +362,9 @@ void InputSource::openFile(const char *filename)
     else if ((suffix == "cf64")  || (suffix == "fc64")) {
         sampleAdapter = std::make_unique<ComplexF64SampleAdapter>();
     }
+    else if ((suffix == "cs32") || (suffix == "sc32") || (suffix == "c32")) {
+        sampleAdapter = std::make_unique<ComplexS32SampleAdapter>();
+    }
     else if ((suffix == "cs16") || (suffix == "sc16") || (suffix == "c16")) {
         sampleAdapter = std::make_unique<ComplexS16SampleAdapter>();
     }
diff --git a/src/main.cpp b/src/main.cpp
index 8b0a30d..7d3e90b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -41,7 +41,7 @@ int main(int argc, char *argv[])
                                   QCoreApplication::translate("main", "Hz"));
     parser.addOption(rateOption);
     QCommandLineOption formatOption(QStringList() << "f" << "format",
-                                  QCoreApplication::translate("main", "Set file format."),
+                                  QCoreApplication::translate("main", "Set file format, options: cfile/cf32/fc32, cf64/fc64, cs32/sc32/c32, cs16/sc16/c16, cs8/sc8/c8, cu8/uc8, f32, f64, s16, s8, u8, sigmf-meta/sigmf-data."),
                                   QCoreApplication::translate("main", "fmt"));
     parser.addOption(formatOption);