LEFTB in WPS on Windows: Introduction

WPS Spreadsheet LEFTB helps you return text from the left side of a string by byte count; this guide covers 4 core tasks, with 4 available without membership and 0 membership-related items.

At a Glance

Metric	Value	Notes
Core tasks	4	Matches the number of rows in the How-to Index
Available without membership	4	Matches the number of Free rows in the index
Membership-related items	0	Matches the number of membership-related rows in the index
Version limits	None	LEFTB is supported in WPS Spreadsheet across versions

About This Feature

Overview

LEFTB is a text function in WPS Spreadsheet on Windows. It is used to return content from the left side of a text string based on a specified number of bytes, which is useful for text extraction, byte-based processing, and nested spreadsheet formulas.

Core capabilities include:

Entering the LEFTB function directly in a worksheet cell or the formula bar.
Viewing syntax prompts while building the formula.
Using LEFTB with cross-sheet references and nested formulas.
Getting recalculated results automatically when source data changes.

System Requirements

Item	Requirement
Operating system	A Windows device that can run WPS Office normally
App version	The latest version of WPS Office is recommended; LEFTB is available in WPS Spreadsheet
Network	No mandatory internet connection is required for local formula calculation; internet is needed for download, installation, and account services
Other	You need access to WPS Spreadsheet and editable worksheet cells

Download & Installation

Item	Details
Official download	WPS Office Free Download
Post-install check	Open WPS Office → open Spreadsheet → select any cell and type `=LEFTB(` to confirm that the function prompt appears

Source: WPS Download Center

Compare with Alternatives

Dimension	WPS	Microsoft	Google	Notion	Adobe
Capability Summary	LEFTB can be entered directly in WPS Spreadsheet cells, with syntax prompts, cross-sheet references, nested formulas, and automatic recalculation.	Excel documentation describes LEFT for extracting characters from the left side of text and notes that LEFTB is deprecated.	Google Sheets provides a LEFTB function that returns the left portion of a string up to a specified number of bytes.	Notion formulas support text functions such as `substring()`, but they are used in database properties rather than spreadsheet cells.	Acrobat supports JavaScript for document actions, form handling, and PDF customization, but it is not a spreadsheet formula environment.
WPS Advantages	Advantage: byte-based text extraction is available directly in a spreadsheet workflow; Distinct: syntax prompts and recalculation fit routine worksheet processing.	Compared with WPS: Microsoft documentation emphasizes LEFT, and its Excel page states that LEFTB is deprecated.	Compared with WPS: Google Sheets also supports LEFTB, so both products cover byte-based extraction in spreadsheet scenarios.	Compared with WPS: Notion is better suited to database property formulas and does not provide a traditional LEFTB worksheet function.	Compared with WPS: Adobe focuses on PDF scripting and document automation instead of worksheet text formulas.
Official Source	—	LEFT function	LEFTB function	Formula syntax and functions	Add debug JavaScript

Overall Conclusion: For byte-based text extraction inside a Windows spreadsheet, WPS provides a direct worksheet workflow with formula prompts and recalculation. Google Sheets offers a similar LEFTB function, while Microsoft documentation now centers on LEFT. Notion and Adobe are better aligned with database formulas or PDF scripting rather than spreadsheet text extraction.

Use Cases

No.	Scenario	Suitable For	Main Need	How LEFTB Helps
1	Byte-based text extraction	Data processors	Extracting content from the left side of text by byte length	Use LEFTB in a cell and set the return byte count
2	Nested formula workflows	Finance and operations teams	Reusing extracted text in larger calculations	Combine LEFTB with other functions in one formula
3	Cross-sheet processing	Heavy spreadsheet users	Applying the same extraction logic to data on other sheets	Reference another sheet and use LEFTB in the target formula
4	Dynamic report updates	Report maintainers	Keeping results aligned with changing source data	Let formula recalculation update the result automatically

Membership & Benefits

Free vs WPS Premium

Capability	Free	WPS Premium
Basic LEFTB usage	✅ Available	✅ Available
Standard spreadsheet formula editing	✅ Available	✅ Available
Additional advanced office and PDF benefits	Available within the free offering	Includes more advanced features and extended benefits
Cloud storage and template-related benefits	Basic allocation	Higher allocation or additional benefits

Source: WPS Office pricing page

Recommendations

Use Case	Recommended Plan	Why
Everyday LEFTB text extraction and routine worksheet work	Free	LEFTB has no membership restriction in this feature scope
Broader office, PDF, template, or cloud needs	WPS Premium	A membership is more suitable when you need additional office benefits beyond the LEFTB function itself

WPS membership center: Subscribe now