Excel compiler
Turn your spreadsheet into a
secure Windows application.
XLS Padlock compiles Excel workbooks into protected EXE files. Your XLSX, XLSM, or XLSB stays on your machine. Your customers run a standalone Windows app with hardware-locked activation, encrypted formulas, and compiled VBA.
Four pillars in one compiler.
Most Excel compilers just bundle the workbook with a runtime. XLS Padlock encrypts, compiles, and locks the content before it leaves your machine, then ships it as a Windows EXE with a real licensing layer on top.
Unbreakable workbook protection
Your XLSX, XLSM, or XLSB is wrapped inside an EXE, encrypted with AES, and never written to disk in plaintext. End users see a Windows application, not a spreadsheet.
See the protection workflowVBA Compiler included
Compile your macros to native bytecode and remove the source. No editor access, no copy-paste of your logic, no password to crack.
Read about the VBA compilerFormula protection
Encrypt your formulas at compile time. Cells still compute the right value at runtime, but the formula bar shows opaque calls only your app understands.
Hide your formula logicHardware-locked activation
Bind every license to two machines. Per-user keys, manual revocation, trial windows, online or offline validation. All shipped with one EXE.
Lock to a machine
From XLSM to shippable Windows app.
- 01
Build your workbook in Excel
Stay in Excel. Use any formulas, any VBA, any Excel feature. No special prep, no migration to a different tool.
- 02
Configure protection in XLS Padlock
Open your XLSM in the XLS Padlock manager. Pick which formulas to encrypt, mark VBA modules to compile, set activation rules, customize the splash screen.
- 03
Compile to a secure EXE
One click produces a Windows EXE. Hand it to your customer or ship it via your store. No Excel source file ever leaves your machine.
- 04
Customer activates and runs
Customer installs the EXE, enters an activation key, gets a fully working workbook. Your IP stays compiled, encrypted, and locked.
Ship it the way you want.
One license covers the entire distribution chain. Code signing, the Setup installer wrapper, the online activation server, and royalty-free distribution to your end users are all included, with no extra purchase per copy.
- Code-signed Windows EXE
- Optional Setup installer wrapper
- Royalty-free distribution
- Online activation server included
- WooCommerce + FastSpring kits
- Auto-update channel
You stay in control.
XLS Padlock is a one-time purchase, not a middleman between you and your buyers. Everything the protection depends on stays yours.
Shipping since 2013 from G.D.G. Software. A desktop tool you can build a business on.
- The workbook
- Your .xlsx never leaves your machine. You compile it yourself into a standalone EXE.
- The keys
- You generate, count, and revoke activation keys. No per-copy fee, no royalties on your sales.
- The server
- Activations validate against a PHP server you host and own, not ours.
- The customer
- You sell directly. The buyer relationship and the full revenue stay with you.