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Formulas into sheets named like .x or R1C1 references are saved unquoted; Excel can't open the file #2009
A formula referencing a sheet named .x, R, C, RC, R1C1 or r2c3 is written to the XLSX without quotes. Excel refuses to open the file and repair fails. Excel writes these as 'R1C1'!A1, '.x'!A1.
Split out of #1458 as requested there. Fixed by #1529.
Checked on maind8c5f58 (gridcraft-cli 0.12.1, dev build, Linux) and in Excel (Microsoft 365, Windows, build 16.0.20527).
Ran: a workbook with sheets named .x, R, C, RC, R1C1, r2c3 (plus A1 and Bob's), and on Sheet1 one formula per sheet, ='<name>'!A1, saved with gridcraft-cli run --script … --out q2.xlsx.
Result: every formula is saved quoted: '.x'!A1, 'R'!A1, 'C'!A1, 'RC'!A1, 'R1C1'!A1, 'r2c3'!A1, 'A1'!A1, 'Bob''s'!A1.
Excel: opens the file without an error, and all eight formulas come back with the same sheet names (for example ='R1C1'!A1, ='Bob''s'!A1). With alerts switched off I can't see a repair prompt, but nothing was dropped.
Activity
ticket-craft commentedon Oct 19, 2026
Possibly related: #1458 and #2011.
Harrison-Booth commentedon Oct 26, 2026
Fixed by #1529
Checked on
maind8c5f58 (gridcraft-cli 0.12.1, dev build, Linux) and in Excel (Microsoft 365, Windows, build 16.0.20527).Ran: a workbook with sheets named
.x,R,C,RC,R1C1,r2c3(plusA1andBob's), and onSheet1one formula per sheet,='<name>'!A1, saved withgridcraft-cli run --script … --out q2.xlsx.Result: every formula is saved quoted:
'.x'!A1,'R'!A1,'C'!A1,'RC'!A1,'R1C1'!A1,'r2c3'!A1,'A1'!A1,'Bob''s'!A1.Excel: opens the file without an error, and all eight formulas come back with the same sheet names (for example
='R1C1'!A1,='Bob''s'!A1). With alerts switched off I can't see a repair prompt, but nothing was dropped.