plainfolder → Mail → MBOX → XLSX
MBOX to Excel — turn a mail archive into a spreadsheet
Convert an mbox archive into an Excel workbook in your browser: one row per message, with senders, dates, sizes and attachment names.
No server processing
No account
No daily limits
About this conversion
An mbox file is one long stream of messages that no spreadsheet will touch. As a workbook the same correspondence becomes countable: sort by sender, filter by year, add a column of your own.
Just want to look inside it?
The same tool without converting anything: open a .mbox file and read it.
You are not locked into XLSX
The file is parsed once and stays open, so the format is picked at the end rather than the beginning: the same .mbox can leave here as CSV, ZIP, EML, PDF, HTML, TXT or JSON. Before that you can search it by subject or address, filter by year, sender and attachment type, mark the duplicates and look through the archive overview.
Questions
- Is this a real Excel file?
- The file is a real .xlsx workbook, not a csv with another name: it opens in Excel, Numbers, LibreOffice and Google Sheets with the columns already in place.
- How large an archive can I open?
- Half a gigabyte is comfortable on a normal computer; the limit is your device's memory, not a plan.