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# Issue 13: [BUG] Word SEQ ALPHABETIC format repeats letter instead of bijective base-26

Status: Open.

#223 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 12: [BUG] raw-set insertbefore reverses the order of multi-element XML fragments

Status: Open.

#222 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 11: [BUG] FormulaParser throws InvalidCastException on valid LaTeX like \left(x_i\right)

Status: Open.

#221 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 10: [BUG] TRIM removes tabs and newlines, Excel only removes spaces (char 32)

Status: Open.

#220 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 9: [BUG] MROUND uses banker's rounding (ToEven) instead of Excel's AwayFromZero

Status: Open.

#219 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 8: [BUG] FACT(-1) returns 1 instead of #NUM! for negative input

Status: Open.

#218 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 7: [BUG] ColorMath tint and shade formulas are inverted relative to OOXML spec

Status: Open.

#217 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 6: [BUG] NORM.S.DIST returns 0 for z ≤ -9 due to Erfc catastrophic cancellation

Status: Open.

#216 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 5: [BUG] COMBIN/PERMUT overflow to NaN/Infinity for n ≥ 171 due to Factorial using double

Status: Open.

#215 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 4: [BUG] IMDIV/IMSUB/IMPRODUCT return malformed string for NaN/Infinity results

Status: Open.

#214 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 3: [BUG] PMT/FV/PV/NPER silently ignore the 5th "type" argument (annuity-due)

Status: Open.

#213 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026

# Issue 2: [BUG] COUNTBLANK always returns 0 (unimplemented stub)

Status: Open.

#212 In iOfficeAI/OfficeCLI;

· Sh-TB opened on Jul 14, 2026