File I/O Operations
Comprehensive file input/output capabilities supporting 15+ molecular and data formats with robust error handling and batch processing features.
Core I/O Nodes
Essential nodes for loading and saving files with advanced file management features.
File Input
Load files from disk with path selection dialog
Key Features
- •File browser dialog
- •Multiple file selection
- •File type filtering
- •Drag and drop support
- •Recent files list
Input Ports
File path (optional - shows dialog if empty)
Output Ports
Raw file content
Selected file path
File metadata (size, date, etc.)
File Output
Save data to files on disk
Key Features
- •Automatic file extension detection
- •Overwrite confirmation
- •Directory creation
- •Backup creation
- •Progress reporting
Input Ports
Data to save
Output file path
Output Ports
Actual saved file path
Save operation success status
Folder Input
Load entire folders and process all files within
Key Features
- •Recursive folder scanning
- •File type filtering
- •Pattern matching
- •Batch processing
- •Progress tracking
Input Ports
Folder path
Output Ports
List of file paths
List of file contents
Folder statistics and metadata
Save DataFrame
Save DataFrames to various file formats
Key Features
- •Multiple format support (CSV, Excel, JSON, Parquet)
- •Custom formatting options
- •Index handling
- •Compression support
- •Progress reporting
Input Ports
DataFrame to save
Output file path
Output Ports
Saved file path
Number of rows saved
Save Molecules
Save molecular structures to various chemical formats
Key Features
- •Multiple format support (SDF, MOL, PDB, etc.)
- •Batch processing
- •Structure validation
- •3D coordinate handling
- •Property preservation
Input Ports
Molecules to save
Output file path
Output Ports
Saved file path
Number of molecules saved
File Readers
Specialized readers for different file formats commonly used in scientific workflows.
SDF Reader
Read SDF molecular structure files
sdf_readerSupported Formats:
Common Use:
Small molecule databases, compound libraries
PDB Reader
Read PDB protein structure files
pdb_readerSupported Formats:
Common Use:
Protein structures, crystal structures
CSV Reader
Read CSV and delimited text files
csv_readerSupported Formats:
Common Use:
Experimental data, compound lists
Excel Reader
Read Excel files with multiple sheet support
excel_readerSupported Formats:
Common Use:
Structured datasets, experimental results
Data Viewers
Interactive viewers for exploring and validating data during workflow development.
Table View
Interactive table viewer for DataFrames
table_viewData exploration and validation
Text View
Text editor and viewer with syntax highlighting
text_viewLog files, configuration files
Image View
Image viewer with zoom and annotation tools
image_viewPlots, molecular diagrams
Supported File Formats
VERA supports 15+ molecular and data file formats commonly used in scientific research.