MIDB in WPS on Windows FAQ

Last updated:July 20, 2026

This FAQ covers 3 common questions about MIDB, including formula errors, syntax prompts, and result checking.

FAQ

What should I do if MIDB shows an error after I enter it?

  1. Check whether the formula starts with =.
  2. Check whether the brackets are paired correctly and the separators between arguments are complete.
  3. Confirm that the number of arguments and their order are correct.
  4. If needed, type MIDB( again and use the syntax prompt to complete the formula.

How can I view the parameter guidance for MIDB?

  1. Select the target cell.
  2. Type =MIDB( in the formula bar.
  3. Review the syntax prompt shown in the interface.
  4. Fill in the text, starting position, and extraction length as prompted.

Why does the MIDB result not match what I expected?

  1. Check whether the referenced cell contains mixed-language characters.
  2. Confirm again that the starting position and byte length match the text segment you want.
  3. If the source data has changed, press F9 to recalculate and check the result again.
  4. If necessary, test the arguments in smaller parts to identify which section is causing the mismatch.

Glossary

TermDefinition
MIDBA function that extracts text from a string by a specified starting position and byte length.
Formula barThe area in a spreadsheet where you enter and edit formulas and expressions.
Syntax promptThe on-screen guidance that shows the function structure and argument requirements while you type.
Cross-sheet referenceA way to use cell content from another worksheet in the current formula.