FILEBOLT XLSX
File conversion

Convert FILEBOLT to XLSX

QUICK ANSWER
Is it possible to convert FILEBOLT to XLSX?
Yes - FILEBOLT converts to XLSX.

A .filebolt file is an AES-encrypted container for one original file, commonly an Excel .xlsx. Open it in the Filebolt app, enter the password, and the app decrypts and returns the exact .xlsx you started with.

Also to XLSX: TSV · TMX · SSP

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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Why convert FILEBOLT to XLSX?

Filebolt is often used to protect sensitive financial spreadsheets, leaving people with a .filebolt they cannot open in Excel and wanting the .xlsx back. Nothing about the spreadsheet is converted - decrypting simply unwraps the original workbook unchanged, as long as you have the password.

How to convert FILEBOLT to XLSX

Envault Filebolt app

Open the .filebolt in Filebolt via drag-and-drop or "Open bolted file...", type the password, and save the recovered .xlsx. You need an installed copy because the app is discontinued.

About these formats

Quality & what to watch

  • This works only if the bolted file was genuinely an .xlsx; decryption cannot invent a spreadsheet that was never inside.
  • The restored workbook is identical to the original - formulas, formatting and data are untouched.
  • Filebolt is discontinued across all platforms, so an installed copy and the correct password are both required.

Frequently asked questions

How do I get my Excel file out of a .filebolt?
Open the .filebolt in Envault Filebolt and enter the password. If the bolted file was an .xlsx, the app returns it intact.
Does decryption change my formulas or formatting?
No. You get the original .xlsx back byte-for-byte, so nothing in the workbook changes.
Can Excel open a .filebolt directly?
No. Excel sees only encrypted data; the file must be decrypted in Filebolt first.
I don't have the password - can I still recover it?
No. Without the password the AES-encrypted .xlsx cannot be recovered.