Import and export

Export when the calculation has to exist as a file. An attachment for someone outside your account, a copy in the project folder, or an archive of the issued revision.

Export and Import ▾ sit in the File group on the Home tab. Both have an icon on the Quick Access bar.

• Export writes a Calculeaf .leaf file holding the whole worksheet — every region with its content and its last answer, plus pictures, unit system, page theme, and the header and footer.
• Import ▾ offers Calculeaf (.leaf), Mathcad Prime (.mcdx), and Mathcad 15 (.xmcd). The Quick Access icon skips the menu and goes straight to the .leaf file picker.

Export a .leaf

1. Choose Export on Quick Access or Home → File.
2. Calculeaf saves any pending edits first. If a region cannot be saved it stops and reports: Could not save all regions — fix errors, then export again.
3. The browser downloads a .leaf named after the worksheet.

The file carries no share link and no worksheet identity, so importing it produces a genuinely separate sheet rather than a second window onto the original. Open it later with Import ▾ → Calculeaf (.leaf). Import always creates a new worksheet and never overwrites the sheet you have open. Hand a file that is not a Calculeaf export to the same command and you get: Import failed — use a Calculeaf (.leaf) export.

Importing from Mathcad

A .mcdx or .xmcd arrives as a new sheet in the same way, but it is a conversion rather than an open. Run Evaluate and walk the page from the top. Names, units, and Given/solve blocks are the usual things to put right by hand. Mathcad import sets out what to expect. Once it computes, either keep working in the account copy or export a .leaf of your own.

Next, read what survives a Mathcad import before you trust the converted sheet.