Jeremy Jay a5be267bf7 more tweaks to memory usage in xls this time ... did not reduce total allocations much (bytes.Reader is more efficient than I thought), but reduced walltime from 99s to 55s for a large collection		2021-02-13 00:06:04 -05:00
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main.go	more tweaks to memory usage in xls this time	2021-02-13 00:06:04 -05:00