What is the LBL file format?
The .lbl extension is used by database label files supported by various xBase applications, including dBASE. A .lbl file stores a formatted label design - it defines dimensions, rows and columns per sheet, margins, and the field expressions printed in each band, applied to records from a companion .DBF table.
Classic dBASE .lbl files are compact binary files; some xBase tools store the layout as plain text instead. FoxPro uses its own .lbx/.lbt label format, while Clipper and Harbour continue to read the dBASE-style .lbl.
Security & safety
RISK: LOWA .LBL is a tiny, passive layout file with no executable code, so it poses essentially no malware risk on its own. The practical issue is that it is useless in isolation - it must be paired with the correct .DBF table in an xBase environment, and the format is legacy, so you may struggle to find software that opens it. Avoid generic 'open any LBL file' download sites (the extension is shared by many unrelated label formats); use real xBase tooling.
Format details
in a nutshellPrograms that open LBL files
Windows3 apps
dBASE (dBASE PLUS)
Paid Open the database project containing the .LBL and its .DBF; use the Label designer/CREATE LABEL to view or run it.
Visual FoxPro (legacy)
Paid Imports/uses xBase tables and labels; note Microsoft discontinued VFP (support ended 2015) - use only for legacy migration.
Text editor (Notepad++, VS Code)
Open-source Open to inspect - readable if the .LBL is stored as text; a binary dBASE .LBL will show mostly non-text bytes. 
Linux1 app
Harbour / xHarbour (xBase compilers)
Open-source Open-source xBase/Clipper-compatible toolchain that can process dBASE-style data and label layouts for migration. Technical details
deep spec| Format type | Label layout definition - stores sheet geometry and field expressions, not data records |
| File encoding | Compact binary (classic dBASE); some xBase tools produce a plain-text/ASCII variant |
| Byte order | Little-endian, reflecting DOS-era xBase tooling |
| File signature | No fixed universal signature; classic dBASE .lbl begins with a header byte often set to 02h |
| Typical file size | Under a few KB - stores a layout definition, not data |
| Companion file | Requires a .DBF table; the layout is applied to its records at print time |
| Label bands | Defines rows and columns per sheet, label dimensions, margins, and per-band field expressions |
| xBase compatibility | dBASE (all versions), Clipper, Harbour/xHarbour; FoxPro uses .LBX/.LBT instead |
| MIME type | application/octet-stream (binary variant); text/plain (text variant) |
| Associated OS | MS-DOS, Windows, Classic Mac OS (older dBASE Mac) |
| Ecosystem | xBase family - shared label format across dBASE, Clipper, and open-source successors |
| Status | Legacy; largely superseded by modern reporting tools and FoxPro's own .LBX/.LBT format, though dBASE PLUS still supports .LBL |
| Released | 1980s (dBASE label feature; xBase ecosystem) |
| Latest version | Maintained as part of dBASE (current dBASE PLUS); legacy across Clipper/FoxPro |
| Specification | www.dbase.com |
LBL conversions
Community Q&A
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