Does it support reading hidden rows or columns?

[MamyAKKK]

The fesod support reading hidden rows or columns? I think this feature is very practical, but I haven't found any related usage in the API.
Currently, I need to utilize different frameworks to achieve similar effects. I would like to inquire whether such processing can be directly supported in fesod?

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The key point is that fesod can help me identify which rows or columns are hidden.

[nkuprins]

Hi @MamyAKKK - I'm not a maintainer, but as I understand:

Today: no. Fesod provides hidden state only at the sheet level (ReadSheet.isHidden(), .ignoreHiddenSheet(true)). Individual rows and columns aren't covered: Fesod never reads the row hidden attribute or the <col hidden="1"> flag, and the "extra" info it reports via ReadListener.extra(...) only covers COMMENT, HYPERLINK, and MERGE.

But it may be possible to support: The .xlsx format stores hidden state as a hidden attribute on <row> and <col>. Fesod's streaming reader already passes over both - it just doesn't read those attributes yet. So there's no whole-sheet load or second pass needed, as the information is already flowing through the parser.

Two ways it could probably be done:

• Through the existing extra() channel - add HIDDEN_ROW / HIDDEN_COLUMN types delivered to ReadListener.extra(...), opt-in via .extraRead(...), mirroring how MERGE already works. This handles rows and columns uniformly, and catches hidden empty rows too (which aren't otherwise delivered to the row callback).
• A per-row flag - e.g. isHidden() on the row metadata, read in invoke(...). Reads a bit more naturally for rows, but columns still need a separate channel, and it can't report hidden rows that are empty (those are skipped before invoke() by default).

Since it'd be a new feature, it's probably worth opening a feature request :)

[MamyAKKK]

Thank you very much for your answer. I have understood it.
However, I think this feature is quite useful for daily work. Let me think about how to follow up this feature.
Thanks again~~~