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For the record, after some tests, using jexcelapi, the following was possible and rendered pretty well (but using inline styles)
- rendering of a specific sheet from the document, by name or index.
- formulas - at least basic ones seem to work well
- background colors
- cell style (bold, font color, font size)
- multi line cells (we display them including the original linebreaks . i.e replacing lb with <br> tags)
- spanning multiple rows/ columns
to check / see if we need to render and if it is possible at all:
- floating boxes
- cell "notes"
- empty rows used for layout
- empty columns or cells used for layout (ie text from previous cell overflowing)
- images ?? (seems not worth the effort)
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Borders are currently not supported; mostly because it is quite a burden to get them right from the excel format: unlike in css, the border definition is not specified on a single cell, but is also shared with the adjacent cells. (ie if cell A1 has a right border, then cell A2 will automatically have a left border)
Please open new issues if any of the above unsupported features would be necessary (floating boxes, notes, images, empty cells/rows/columns, overflowing text, images, or other) - testcases and patches are welcome as usual.
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