From 2ae631376b95ff0a59ea18c2c0befcd50135b020 Mon Sep 17 00:00:00 2001
From: xuri <xuri.me@gmail.com>
Date: Fri, 29 May 2020 00:26:40 +0800
Subject: add limits for total columns, row and filename length

---
 xmlDrawing.go | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'xmlDrawing.go')

diff --git a/xmlDrawing.go b/xmlDrawing.go
index 808bed5..b2eeed6 100644
--- a/xmlDrawing.go
+++ b/xmlDrawing.go
@@ -80,6 +80,15 @@ const (
 	ExtURIMacExcelMX             = "{64002731-A6B0-56B0-2670-7721B7C09600}"
 )
 
+// Excel specifications and limits
+const (
+	FileNameLength       = 207
+	TotalRows            = 1048576
+	TotalColumns         = 16384
+	TotalSheetHyperlinks = 65529
+	TotalCellChars       = 32767
+)
+
 var supportImageTypes = map[string]string{".gif": ".gif", ".jpg": ".jpeg", ".jpeg": ".jpeg", ".png": ".png", ".tif": ".tiff", ".tiff": ".tiff"}
 
 // xlsxCNvPr directly maps the cNvPr (Non-Visual Drawing Properties). This
-- 
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