oleibman

While investigating, I found several different problems (PR #2788). Unfortunately, none of these match yours. It looks like you might be trying to copy the xlsx result of samples/Basic/05_Feature_demo to...

Four months, no update, unable to duplicate problem. Closing.

As it turns out, if we have a worksheet which contains both form controls and comments (see formscomments.xlsx which is part of this PR), PhpSpreadsheet already creates a corrupt file...

A sample file for issue #2621 illustrated a problem with shape files. Since they are involved here, I took a look at how the sample worked with this code. In...

Fix #2661. A template including checkboxes was leading to file corruption solved by this PR. Another argument for moving forward.

Closing, superseded by PR #3130.

I do not understand the problem you are reporting. When you open the file in Excel, does the string in the cell not have the correct contents? Also, what harm...

My version of Excel does not have any problem opening a file I created as follows (based largely on the test case in your PR), and the contents of A1...

You have a problem because there is too much data in the cell. There are limits on the maximum number of characters that a cell can contain - see https://support.microsoft.com/en-us/office/excel-specifications-and-limits-1672b34d-7043-467e-8e27-269d656771c3?ui=en-us&rs=en-us&ad=us#ID0EBABAAA=Excel_2016-2013...

See discussion in PR #2913, which is now closed. The problem that is being reported is real, but it appears to be a problem with Excel, not PhpSpreadsheet.