Issues

• Any way to read the evaluated data of a formula cell?

  how to?
  rabanti-github/NanoXLSX#87 · Filter by author arc-walker opened on Aug 21, 2026
  1

• An attempt to load a file causes a crash

  bugcompleted
  rabanti-github/NanoXLSX#86 · Filter by author MOP3E opened on Aug 10, 2026
  4

• An attempt to load a workbook from a file causes the WPF program to freeze

  bugcompletedhow to?
  rabanti-github/NanoXLSX#84 · Filter by author MOP3E opened on Apr 24, 2026
  5

• How to read cell containg date?

  how to?
  rabanti-github/NanoXLSX#82 · Filter by author TiliSleepStealer opened on Jan 9, 2026
  2

• Open file with lots of data is pretty slow

  enhancement
  rabanti-github/NanoXLSX#81 · Filter by author allenz8512 opened on Dec 24, 2025
  4

• [FeatureRequest]: LoadAsync to take and respect CancellationToken

  backlog-v3enhancement
  rabanti-github/NanoXLSX#80 · Filter by author Smurf-IV opened on Oct 1, 2025
  5

• [Feature Request]; Please read the definedNames to populate known ranges

  completedenhancement
  rabanti-github/NanoXLSX#79 · Filter by author Smurf-IV opened on Oct 1, 2025
  5

• Add Strong name signing

  enhancementwontfix
  rabanti-github/NanoXLSX#47 · Filter by author shalarim opened on Mar 14, 2023
  3

  

• CustomFormatCode - Backslash to escape special format characters

  bug
  rabanti-github/NanoXLSX#42 · Filter by author SebZar opened on Nov 3, 2022
  5

• Read large xlsx files

  enhancementquestion
  rabanti-github/NanoXLSX#38 · Filter by author mla-alm opened on Oct 8, 2022
  2

• Image support

  enhancement
  rabanti-github/NanoXLSX#37 · Filter by author marcel-kehrer opened on Oct 5, 2022
  1

• Is it possible to add Data Validations?

  backlog-v3enhancement
  rabanti-github/NanoXLSX#35 · Filter by author kchanninggithub opened on Oct 3, 2022
  6

• Semicolon in formulas replaced with |

  backlog-v3pending
  rabanti-github/NanoXLSX#27 · Filter by author nieejl opened on Jun 8, 2022
  4