It is a common case in helpdesks I've collaborated with to fix corrupted Excel files by opening them in LibreOffice and resaving them to Excel. Also, Excel's practice of munging CSVs requires an initial read in LibreOffice sometimes and then saving to Excel when Excel simply can't handle the file format.
LibreOffice is slow but it is often more correct.
Update: Over the years, it seems to me that the MS formats are incented to be as incompatible as possible with other formats to lock folks into their format. It enables them to say that they are the most "compatible". . . but it really means the most "ability to read their own format" even though compatibility is better across the board with alternatives.
LibreOffice is slow but it is often more correct.
Update: Over the years, it seems to me that the MS formats are incented to be as incompatible as possible with other formats to lock folks into their format. It enables them to say that they are the most "compatible". . . but it really means the most "ability to read their own format" even though compatibility is better across the board with alternatives.