oleibman

Although this is an Mpdf problem, code similar to the following within your application will work around that problem and get the desired result almost all the time: ``` php...

Caused by PR #3677. Non-backwards-compatible because, prior to that change, PhpSpreadsheet ignored fractional seconds, but Excel does not. The effect within PhpSpreadsheet/Excel is, I believe, minimal - the same data...

Please upload the spreadsheet that causes this problem. Without it, there is no chance of debugging it.

Thank you for the sample file. This is another case of unexpected absolute addressing in a rels file. Expect a PR in a day or two.

Thank you for the info on openpyxl - I hope you have opened an issue with them as well. In the meantime, please test against PR 3923 if you can.

Just stumbled upon this. Is it still an issue for you? When I run your code, my output file seems correct: 

No update in 4 months, problem seems resolved, closing.

This has arisen in the past (see issue #1931), but was rejected because it wasn't a good fit for Xlsx (or Ods) files. Which doesn't mean we can't think about...

It sounds like maybe you have an idea on how to solve the streaming problem for Xlsx. That would certainly be useful. Do you think you could attack that first,...

Thank you for uploading the file. PhpSpreadsheet does have a problem with it, but I think it is unrelated to this issue. I will open a new one for it.