Knowledge base KB0196

Error message when starting PowerPoint or Excel, or editing a think-cell chart: "CModuleFindChunk failed …"


An error message mentioning "CModuleFindChunk failed …" pops up when opening PowerPoint or Excel, or inserting or editing a think-cell chart. This error typically appears after an update for Microsoft Office has been installed.


Download and install the latest think-cell version from our download web page.

If you have joined the Office Insider or First Release program, you might have an Office update installed with which think-cell is not yet compatible. To work around this, you can choose to opt out of the preview program.

Contact Support

In case you are still experiencing this issue after updating to the newest think-cell version, please contact our support team:

Please send us the think-cell log files. For this, open PowerPoint and go to Insertthink-cellMore More MenuRequest Support. The log files will be automatically attached to a new email.

If this does not work, you can find the log files as explained below:

  • Open a new Windows Explorer window and type


    into the address field and press Enter.

  • If you want to browse to these directories but cannot see them, they are probably set to invisible. You can change that in Windows Explorer by checking:

    • Windows Vista and Windows 7:
      OrganizeFolder and search optionsViewShow hidden files and folders.
    • Windows 8, Windows 8.1 and Windows 10:
      ViewShow/hideHidden Items.
  • Please send all files with the extension .log contained in this folder to our support team. This may be any of the following files: POWERPNT_log.log, EXCEL_log.log, TCMAIL_log.log, TCUPDATE_log.log, TCRUNXL_log.log, PPTTC_log.log, setup_think-cell_xxxxx_log.log.

Technical background

Microsoft releases frequent updates for Office 365 and Office 2016 with which older versions of think-cell may not be compatible. For details, please see our knowledge base article KB0165: Does think-cell work with Microsoft Office 365 and Office 2016?