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File Menu

The main window File Menu options are as follows:

PeakLab Data File Options

Generate/open2.gif Open...

The Open... menu item is opens an existing PeakLab [PFD] data file. A PFD file contains the imported data, all modifications to that data, all fits, and all support information used in the fitting.

The IRF and ZDD settings for the convolution integral and higher moment models are also saved in the PFD file, but are not loaded unless the Recall option is used in the respective IRF and ZDD dialogs.

The current user-defined functions are also saved in the PFD file, even if not currently used in any of the saved fits in the file. You can access the user-defined functions present at the time any given file was saved simply by opening the file. The user function can then be saved to a separate user function library (if such was not previously done), and imported for different data sets.


The Append... menu option is used to append another PeakLab data file to the current one. When you append two files, only the uppermost data levels of the two files are used to create a new third file which consists only of the data collected from each. You will be given the option to save the existing data.

The fits associated with the uppermost data level of each are also appended. Since only the user-functions in the current file are retained in the append process, any fits which use a user-defined function in the second appended file are not carried over to the appended file.

Generate/saveas2.gif Save...

The Save menu option saves the current PeakLab [PFD] data file to disk. Changes are not automatically saved, even when different data levels are generated. You must explicitly save the file to retain such changes. If a file is new and not yet named, this option is the same as the Save As... option.

Generate/saveas4.gif Save As...

The Save As option will save the current PeakLab [PFD] data file to disk with a different name and/or location.


The Close option close the current PeakLab [PFD] data file.

Import Options

The Import options allow up to 25 raw data sets to be added to a PeakLab file. All of the options are File menu Import Data Set(s) items:

Import Data Sets(s)

Generate/open8.gif Import from ASCII/AIA Data Files...

Generate/open5.gif Import from an Excel or ASCII CSV File...

Generate/open6.gif Import from Clipboard...

The Import DAD 3D Spectra... option allows multiple data sets to be imported from a DAD matrix stored as an ASCI CSV file.

The Import Data Sets from Model Data Matrix option allows up to 25 spectra stored in a model data matrix to be imported into the program for peak fitting and other analyses of specific spectral data.

The following import options are available with a simple digital filter that imports every nth data point starting with a specified point in the data stream:

Import from ASCII/AIA Data Files using Digital Filter

Import from an Excel or ASCII CSV File using Digital Filter

Import from Clipboard using Digital Filter

Export Options

The File menu Export Data Set(s) options all export the existing data to an ASCII file. You export the principal data, the selected data sets, or all data sets. The export is always to a CSV file to ensure the proper columnar position of data of different lengths. Excel will read CSV files directly with no import parsing specification needed as occurs with other ASCII delimiters.

Note that this option is used only to export the PeakLab data level selected to a file that can be imported by Excel or virtually any other application. No fits are exported nor are the other data levels other than the currently selected one exported. Note that the Review has an option for specifically exporting fit information.

Export Data Set(s)

Generate/saveas3.gif Export Principal Data Set to ASCII CSV File...

Generate/saveas4.gif Export Selected Data Sets to ASCII CSV File...

Generate/saveas5.gif Export All Data Sets to ASCII CSV File...

ASCII File Options

These are support procedures for dealing with ASCII files.

Consolidate ASCII/AIA Data Files...

The ASCII and AIA net-CDF files exported from instruments will usually contain just one data set. The Consolidate ASCII/AIA Data files... option may be useful if you wish to create a large Excel file of many data sets in a single step independent of importing the data into PeakLab. Once imported into PeakLab, you would normally use the Export Data Set(s) options mentioned above, allowing any data level to be exported, but limited to the program's 25 simultaneous data set limit. In this option, you can combine up to 256 individual ASCII or AIA files into a single CSV file. You can select AIA and ASCII files and the ASCII files can have different formats.

Display ASCII File...

The Display ASCII File... option uses the program's text viewer to display any ASCII file you wish to view. You can also invoke the ASCII Editor from the view window's Edit menu where there are certain formatting options in its Style menu that may be useful, such as Reverse Comma and Decimal, and changing the delimiter with the Space Delimited, Comma Delimited, and Tab Delimited options.


You may use the Exit menu item to exit from the program. If the current data table has not been saved, you will be presented an opportunity to do so before the program closes.

Previous Files

The program remembers the last nine files read into the program and stores their names at the bottom of the File menu. These are saved across sessions. You may select any one of these files to immediately load the PFD file listed into the program. These can be independently cleared using the Edit menu's Reset Defaults | Clear Recently Used File List.

Importing Files by Drag and Drop

You may use Windows to drag multiple files you wish to import into a new PeakLab data file instead of using the Import procedure. Note that this feature is intended for dropping ASCII and AIA net-CDF files each containing a single data set into the program to create a new PFD data set. You can include Excel files and a column selection will be presented, but you will only be able to extract one data set from each file. You may drag the files to an empty main screen, or on top of existing data. Any existing data will be replaced with the newly created file containing all of the imported data sets. If the present data and fits are not fully saved, you will be offered an option to save the existing file before the new one is created.

Opening a PeakLab file by Drag and Drop

You may use Windows to drag a single PeakLab data file into the program instead of using the Open procedure. The file must be a PFD file previously created the PeakLab. You may drag the file to an empty main screen, or on top of existing data. Any existing data will be replaced with the new file. If the present data and fits are not fully saved, you will be offered an option to save the existing file before the new one is opened.




C:\1pf2022\Help\home.gif Manage Saved Fits ASCII Editor