diff --git a/include/agent.hpp b/include/agent.hpp
index 9ab0fd1..92613ac 100644
--- a/include/agent.hpp
+++ b/include/agent.hpp
@@ -20,7 +20,7 @@ class Agent : public AgentBase
 
     std::string to_string() const override
     {
-        return fmt::format( "{}", data );
+        return fmt::format( "{:.16f}", data );
     }
 };
 
diff --git a/include/util/io.hpp b/include/util/io.hpp
index 6b02d91..c19cc4c 100644
--- a/include/util/io.hpp
+++ b/include/util/io.hpp
@@ -47,7 +47,7 @@ inline void opinions_to_file( Simulation & simulation, const std::string & file_
     auto & model    = simulation.model;
     size_t n_agents = network->n_agents();
 
-    fmt::print( fs, "# idx_agent opinion[...]\n" );
+    fmt::print( fs, "# idx_agent, opinion[...]\n" );
     for( size_t idx_agent = 0; idx_agent < n_agents; idx_agent++ )
     {
         std::string row = fmt::format( "{:>5}, {:>25}\n", idx_agent, model->get_agent( idx_agent )->to_string() );
@@ -64,7 +64,7 @@ inline void network_to_file( Simulation & simulation, const std::string & file_p
     auto & network  = *simulation.network;
     size_t n_agents = network.n_agents();
 
-    fmt::print( fs, "# idx_agent n_neighbours_in indices_neighbours_in[...] weights_in[...]\n" );
+    fmt::print( fs, "# idx_agent, n_neighbours_in, indices_neighbours_in[...], weights_in[...]\n" );
     auto buffer_neighbours = std::vector<size_t>();
     auto buffer_weights    = std::vector<Network::WeightT>();
 
diff --git a/src/main.cpp b/src/main.cpp
index ee4be9d..71483c1 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -33,7 +33,7 @@ int main( int argc, char * argv[] )
     std::optional<std::string> agent_file          = program.present<std::string>( "-a" );
     std::optional<std::string> network_file        = program.present<std::string>( "-n" );
     std::optional<std::string> output_dir_path_cli = program.present<std::string>( "-o" );
-    fs::path output_dir_path = output_dir_path_cli.value_or( config_file_path.parent_path() / fs::path( "output" ) );
+    fs::path output_dir_path                       = output_dir_path_cli.value_or( fs::path( "./output" ) );
 
     fmt::print( "Using input file: {}\n", config_file_path.string() );
     fmt::print( "Output directory path set to: {}\n", output_dir_path.string() );