GCW: Global Column-Width Flags (ABh)

This record contains an array of 256 flag bits, where each bit represents a column on the sheet. If a bit is true, it means that the corresponding column has the Use Standard Width option turned on. If a bit is false, it means that the column has the Use Standard Width option turned off. If the Standard Width measurement has been changed (that is, if it is no longer the default), Microsoft Excel writes a STANDARDWIDTH record.

Record Data

Offset	Name	Size	Contents

4	cb	2	Number of bytes in the global column-width flags
6	grbitGCW	2	Global column-width flags for columns A through P
8	grbitGCW	2	Global column-width flags for columns Q through AF
...	...	...	...
4+cb	grbitGCW	2	Global column-width flags for columns IG through IV

The grbitGCW field contains the option flags listed in the following table.

Bits	Mask	Name	Contents

0 (LSB)	0001h	fGCWcol1	Flag for column 1 (for example, column A)
1	0002h	fGCWcol2	Flag for column 2 (for example, column B)
2	0004h	fGCWcol3	Flag for column 3 (for example, column C)
...	...	...	...
15	8000h	fGCWcol16	Flag for column 16 (for example, column P)