Export

The export tab lets you save your work to CSV or Excel. It is populated when you switch to it, showing everything computed so far.

Exportable artifacts

Artifact	What it contains
Bilateral Result	The method, base/comparison periods, and the single index value.
Multilateral Result	The full index series (period, index_value).
Balanced Panel	The balanced, (optionally) imputed product-period panel.

Formats

Each artifact offers two buttons:

• Export CSV — writes a .csv file.
• Export Excel — writes an .xlsx file.

A native save-file dialog lets you choose the destination and file name. The default file name follows the convention:

<artifact>_data.<ext>

for example bilateral_data.csv or multilateral_data.xlsx.

Export the panel too

Even if you only computed a single bilateral index, you can still export the balanced panel for further analysis in another tool.

File-name conventions

Artifact	Default name
Bilateral	bilateral_data.csv / .xlsx
Multilateral	multilateral_data.csv / .xlsx
Balanced	balanced_data.csv / .xlsx

That completes the PyIndexGUI workflow.